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Artículos de revistas sobre el tema "Phosphine imide"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 16 de febrero de 2022

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1

Agrawal, Seema y Anudeep Kumar Narula. "Facile synthesis of new thermally stable and organo-soluble polyamide-imides from phosphorus-containing aromatic amines and various dianhydrides". Journal of Polymer Engineering 33, n.º 6 (1 de septiembre de 2013): 509–20. http://dx.doi.org/10.1515/polyeng-2013-0100.

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Abstract Imide ring containing novel polyamide-imides (PAIs) were prepared by triphenyl phosphite-activated polycondensation of phosphorus-containing aromatic amines, bis(3-aminophenyl) isopropyl phosphine (BAP) and bis(3-aminophenyl) aminotolyl phosphine (TAP), with various diimide-diacids (DIDAS). All polymers were fully characterized by FTIR, 1H-NMR, 13C-NMR, 31P-NMR spectroscopy and elemental analysis. These polymers showed no significant weight loss below 419°C and glass transition temperatures (Tg) in the region of 231°C–290°C. The resulting polymeric films exhibited high optical transparency. The inherent viscosity of the synthesized polymers was in the range 0.55–0.85 dl/g and wide angle X-ray diffraction measurements revealed that these polymers were predominantly amorphous.

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2

Hoshimoto, Yoichi, Shun Nagai, Takaya Hinogami, Sunit Hazra y Sensuke Ogoshi. "N ‐Phosphine Imide‐Substituted Imidazolylidenes". Asian Journal of Organic Chemistry 10, n.º 5 (12 de abril de 2021): 1085–89. http://dx.doi.org/10.1002/ajoc.202100109.

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3

Zhu, Cheng, Alexandre Bergantini, Santosh K. Singh, Ralf I. Kaiser, André K. Eckhardt, Peter R. Schreiner, Ya-Syuan Huang, Bing-Jian Sun y Agnes H. H. Chang. "Formation of phosphine imide (HNPH3) and its phosphinous amide (H2N–PH2) isomer". Chemical Communications 57, n.º 40 (2021): 4958–61. http://dx.doi.org/10.1039/d0cc08411e.

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4

Adamek, Jakub, Roman Mazurkiewicz, Anna Węgrzyk y Karol Erfurt. "1-Imidoalkylphosphonium salts with modulated Cα–P+ bond strength: synthesis and application as new active α-imidoalkylating agents". Beilstein Journal of Organic Chemistry 13 (24 de julio de 2017): 1446–55. http://dx.doi.org/10.3762/bjoc.13.142.

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An effective synthesis of the hitherto unknown 1-imidoalkylphosphonium salts has been developed in the reported study. The crucial step in the method included the decarboxylative α-methoxylation of N-phthaloyl- or N-succinylamino acids to the corresponding N-(1-methoxyalkyl)imides, followed by the displacement of the methoxy group by the triarylphosphonium group through melting of the imide derivative with triarylphosphonium tetrafluoroborate. The imidoalkylating properties of the obtained 1-imidoalkylphosphonium salts were tested using the Tscherniac–Einhorn-type reaction with aromatic hydrocarbons as a model reaction. It was found that the Cα–P+ bond strength can be considerably reduced and the imidoalkylation of arenes can be markedly facilitated using 1-imidoalkylphosphonium salts derived from triarylphosphines with electron-withdrawing substituents such as tris(m-chorophenyl)phosphine, tris(p-chlorophenyl)phosphine and tris[p-(trifluoromethyl)phenyl]phosphine. Microwave irradiation also considerably facilitates the cleavage of the highly polar Cα–P+ bond.

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5

Scondo, Alexandre, Florence Dumarcay-Charbonnier, Alain Marsura y Danielle Barth. "Supercritical CO2 phosphine imide reaction on peracetylated β-cyclodextrins". Journal of Supercritical Fluids 48, n.º 1 (febrero de 2009): 41–47. http://dx.doi.org/10.1016/j.supflu.2008.09.003.

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6

Guidi, Vanina V., Zhou Jin, Devin Busse, William B. Euler y Brett L. Lucht. "Bis(phosphine Imide)s: Easily Tunable Organic Electron Donors". Journal of Organic Chemistry 70, n.º 19 (septiembre de 2005): 7737–43. http://dx.doi.org/10.1021/jo051196u.

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7

Porwanski, Stanisław, Bogusław Kryczka y Alain Marsura. "A polymer-supported ‘one-pot’ phosphine imide reaction on cyclodextrins". Tetrahedron Letters 43, n.º 47 (noviembre de 2002): 8441–43. http://dx.doi.org/10.1016/s0040-4039(02)02101-9.

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8

Menuel, Stephane, Michel Wagner, Danielle Barth y Alain Marsura. "Supercritical CO2 improved phosphine imide reaction on peracetylated β-cyclodextrin". Tetrahedron Letters 46, n.º 19 (mayo de 2005): 3307–9. http://dx.doi.org/10.1016/j.tetlet.2005.03.107.

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9

Kano, Naokazu, Kazuhide Yanaizumi, Xiangtai Meng, Nizam Havare y Takayuki Kawashima. "Synthesis of a phosphine imide bearing a hydrosilane moiety, and its water-driven reduction to a phosphine". Chemical Communications 49, n.º 88 (2013): 10373. http://dx.doi.org/10.1039/c3cc43955k.

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10

Porwanski, Stanislaw, Stephane Menuel, Xavier Marsura y Alain Marsura. "The modified `phosphine imide' reaction: a safe and soft alternative ureas synthesis". Tetrahedron Letters 45, n.º 26 (junio de 2004): 5027–29. http://dx.doi.org/10.1016/j.tetlet.2004.05.002.

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11

Hsu, Wen-Hsiang y Min-Da Shau. "The properties of epoxy-imide resin cured by cyclic phosphine oxide diacid". Journal of Applied Polymer Science 62, n.º 2 (10 de octubre de 1996): 427–33. http://dx.doi.org/10.1002/(sici)1097-4628(19961010)62:2<427::aid-app17>3.0.co;2-y.

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12

Kano, Naokazu, Kazuhide Yanaizumi, Xiangtai Meng, Nizam Havare y Takayuki Kawashima. "ChemInform Abstract: Synthesis of a Phosphine Imide Bearing a Hydrosilane Moiety, and Its Water-Driven Reduction to a Phosphine." ChemInform 45, n.º 12 (6 de marzo de 2014): no. http://dx.doi.org/10.1002/chin.201412190.

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13

Özarslan, Özdemir, Mustafa Kemal Bayazıt y Efkan Çatıker. "Preparation and properties of flame retardant poly(urethane-imide)s containing phosphine oxide moiety". Journal of Applied Polymer Science 114, n.º 2 (15 de octubre de 2009): 1329–38. http://dx.doi.org/10.1002/app.30601.

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14

Kovačević, B. y Z. B. Maksić. "High basicity of tris-(tetramethylguanidinyl)-phosphine imide in the gas phase and acetonitrile—a DFT study". Tetrahedron Letters 47, n.º 15 (abril de 2006): 2553–55. http://dx.doi.org/10.1016/j.tetlet.2006.02.048.

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15

Rankin, David W. H., Heather E. Robertson, Ragnhild Seip, Hubert Schmidbaur y G�nther Blaschke. "Determination of the molecular structures of tri(t-butyl)phosphine oxide and tri(t-butyl)phosphine imide in the gas phase by electron diffraction". Journal of the Chemical Society, Dalton Transactions, n.º 4 (1985): 827. http://dx.doi.org/10.1039/dt9850000827.

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16

Shaver, Michael P., Robert K. Thomson, Brian O. Patrick y Michael D. Fryzuk. "Vanadium and niobium diamidophosphine complexes and their reactivity". Canadian Journal of Chemistry 81, n.º 12 (1 de diciembre de 2003): 1431–37. http://dx.doi.org/10.1139/v03-153.

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The tridentate ligand precursors R′P(CH2SiMe2NR′′)2 (R′R′′[NPN]: R′ = Cy, Ph; R′′ = Ph, Mes, Me) were prepared from metathesis reactions of a lithiated amine, chloro(chloromethyl)dimethylsilane, the appropriate 1° phosphine, and n-butyl lithium and were isolated as solvent adducts. Metathesis between CyPh[NPN]Li2(OEt2), 2, and VCl3(THF)3 afforded (CyPh[NPN]VCl)2, 7, whose solid-state structure was established by X-ray crystallography. Reduction attempts of the (R′R′′[NPN]VCl)2 species with KC8 incorporated molecular nitrogen but were complicated by imide formation and ligand decomposition. Metathesis of 2 with NbCl2Me3 afforded the highly unstable complex CyPh[NPN]NbMe3, 15. Attempts to hydrogenate this species were unsuccessful.Key words: vanadium, niobium, metathesis, coordination chemistry, reduction, hydrogenation.

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17

Rane, U. G., A. A. Sabnis y V. V. Shertukde. "Synthesis and Characterization of Imide Containing Hybrid Epoxy Resin with Improved Mechanical and Thermal Properties". International Journal of Polymer Science 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/941793.

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Phosphorous containing amine, tripropyldiamine phosphine oxide (TPDAP), and hybrid monomer 4-(N-phthalimidophenyl) glycidylether (PPGE) were synthesized and characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis (EDX). PPGE was incorporated in bisphenol A epoxy resin (BPA) in various concentrations (5% to 20%), based on a weight percentage of BPA resin. Curing was carried out with the stoichiometric amount of TPDAP and 1,3-propanediamine (PDA) to result in cross-link network. Various mechanical, chemical, thermal, and flame retardant properties of modified and unmodified epoxy resin were studied. The coatings obtained with the addition of PPGE were found to have improved properties as compared with those of the unmodified resin. Coatings with 15% loading of PPGE showed improved flame retardant and mechanical properties with stable thermal behaviour.

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18

Tan, B., C. N. Tchatachoua, L. Dong y J. E. McGrath. "Synthesis and characterization of arylene ether imide reactive oligomers and polymers containing diaryl alkyl phosphine oxide groups". Polymers for Advanced Technologies 9, n.º 1 (enero de 1998): 84–93. http://dx.doi.org/10.1002/(sici)1099-1581(199801)9:1<84::aid-pat737>3.0.co;2-f.

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19

Matveeva, Ekaterina, Elena Sharova, Alexander Turanov, Vasilii Karandashev y Irina Odinets. "Extraction properties of β-aminophosphine oxides towards lanthanides and alkaline earth metals". Open Chemistry 10, n.º 6 (1 de diciembre de 2012): 1933–41. http://dx.doi.org/10.2478/s11532-012-0124-0.

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AbstractThe investigation of the extraction properties of a series of polyoligodentate β-aminophosphine oxides 1–8 bearing from one to six phosphine oxide groups in a molecule towards Ln(III) and alkaline earth metals ions from neutral media has revealed that, using common diluents, the extraction efficiency increases with an increase of a number of P=O functions in a ligand. The addition of ionic liquid, namely 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([bmim][NTf2]), significantly increasing the extraction efficiency and application of IL concentration of 0.05 M (in 1,2-dichloroethane) providing the maximum recovery of metal ions with Lu/La separation factor reaching up to 91. Hexapodal tris[bis(2-diphenylphosphorylethyl)aminoethyl]amine 8 demonstrates the highest extraction under all conditions applied and the separation factor for U and Eu of this compound exceeded 103.

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20

Nath, Dilip Chandra Deb, Christopher M. Fellows, Toshiaki Kobayashi y Teruyuki Hayashi. "Hydroamidation of Alkenes with N-Substituted Formamides". Australian Journal of Chemistry 59, n.º 3 (2006): 218. http://dx.doi.org/10.1071/ch06010.

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Hydroamidation of olefins with N-substituted formamides is performed with dodecacarbonyltriruthenium (Ru3(CO)12) at 180°C under N2 or CO atmosphere in toluene and in a series of ionic liquids. Yields of 99% with 94–97% exo selectivity are found in the addition of N-methylformamide to 2-norbornene under CO both in toluene and in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [bmim][NTf2]. The presence of CO or a phosphine is necessary for significant reaction to occur, with CO more effective than triphenylphosphine in all ionic liquids investigated. Reasonable yields are achieved at low pressures, in contrast to most reported hydroamidations. Conversion, exo-selectivity, and selectivity fall with increasing steric bulk of the N-formamide substituent, and disubstituted formamides are inactive. Of the terminal alkenes investigated, only styrene can be hydroamidated.

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21

Münchenberg, Jochen, Holger Thönnessen, Peter G. Jones y Reinhard Schmutzler. "Synthese von Organylphosphonigsäure-N-(N′,N′,N″,N″-tetramethyl)guanidinidfluoriden und ihre Reaktion mit Chalkogenen und Triphenylmethylazid; Darstellung und Charakterisierung von Organylchalkogeno- und Phenyltriphenylmethylimino- phosphonsäure-N-(N′,N′,N″,N″-tetramethyl)guanidinidfluoriden / Synthesis of Organophosphonous-N-(N′,N′,N″,N″-tetramethyl)guanidinide Fluorides and their Reaction with Chalcogens and Triphenylmethyl Azide; Synthesis and Characterization of Organochalcogeno- and Phenyltriphenylmethylimino-phosphonic-N-(N′,N′,N″,N″-tetramethyl)-guanidinide Fluorides". Zeitschrift für Naturforschung B 51, n.º 8 (1 de agosto de 1996): 1150–60. http://dx.doi.org/10.1515/znb-1996-0816.

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The organophosphonous-N-(N′,N′,N″,N″-tetramethyl)guanidinide fluorides RP(F)N=C(NMe2)2 2a (R = t-Bu) and 2b (R = Ph) were synthesized. They are readily oxidized by the urea-H2O2 1:1 adduct and by elemental sulfur, selenium and tellurium to give the compounds 4a/b, 5a/b, 6a/b and 7a/b respectively. Compound 2b undergoes a Staudinger reaction with triphenylmethyl azide to yield the phosphine imide 3. The compounds were characterized by 1H-, 13C-, 19F and 31P NMR spectroscopy, and 6a/b and 7a/b by 77Se and 125Te NMR spectroscopy. The structures of the sulfur compound 5b and the selenium compound 6a were confirmed by X-ray crystal structure analysis. Both molecules exhibit short P-N-bonds [158.9(2) pm and 159.8(3) pm] consistent with partial double bond character even though the P(:S) and the P(:Se) bonds are not longer than a normal double bond.

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22

Faghihi, Khalil. "Synthesis and characterization of new flame-retardant poly(amide-imide)s containing phosphine oxide and hydantoin moieties in the main chain". Journal of Applied Polymer Science 102, n.º 5 (2006): 5062–71. http://dx.doi.org/10.1002/app.24667.

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23

Faghihi, Khalil y Khosrow Zamani. "Synthesis and properties of novel flame-retardant poly(amide-imide)s containing phosphine oxide moieties in main chain by microwave irradiation". Journal of Applied Polymer Science 101, n.º 6 (2006): 4263–69. http://dx.doi.org/10.1002/app.23580.

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24

Koch, Daniela, Karlheinz Sünkel y Wolfgang Beck. "Metallkomplexe mit biologisch wichtigen Liganden, CXI. Phosphan-Gold(I), -Nickel(II) und -Platin(II) Komplexe mit dem Anion von Hydantoin und 3,4-Pyridindicarbonsäureimid/Metal Complexes of Biologically Important Ligands, CXI. Phosphine Gold(I), Nickel(II) and Platinum(II) Complexes with the Anion of Hydantoin and of 3,4 Pyridine Dicarboxylic Imide". Zeitschrift für Naturforschung B 54, n.º 1 (1 de enero de 1999): 96–102. http://dx.doi.org/10.1515/znb-1999-0118.

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The anions of hydantoin (L1) and of the imide of 3,4-pyridine dicarboxylic acid (L2) form the complexes Ph3PAu(L1-H+) (1), Ph3PAu(L2-H+) (2), (nBu3P)2Ni(L1-H+)2 (3) and the ligand bridged compounds Ph3PAu(L2-H+)M(PEt3)Cl2 (M = Pd, Pt, 4, 5). With the neutral ligand L2 the complexes Cp*Ir(Cl)2(L2) (6), (ρ-cymene)Ru(Cl)2 (L2) (7) and (Et3P)(Cl)2Pd(L2) (8) were obtained. Complexes 1, 2 and 6 were characterized by X-ray diffraction.

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25

Banihashemi, A., B. Tamami y A. Abdolmaleki. "Synthesis and characterization of new aromatic poly(amide-imide)s derived from bis(3-trimellitimidophenyl) phenyl phosphine oxide and various aromatic diamines". Journal of the Iranian Chemical Society 1, n.º 2 (diciembre de 2004): 141–51. http://dx.doi.org/10.1007/bf03246107.

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26

Jayachandran, Kavitha, Ruma Gupta, Mahesh Sundararajan, Santosh K. Gupta, Manoj Mohapatra y S. K. Mukerjee. "Redox and Photophysical Behaviour of Complexes of NpO2+ Ions with Carbomyl methyl phosphine oxide in 1-Hexyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide Ionic Liquid". Electrochimica Acta 224 (enero de 2017): 269–77. http://dx.doi.org/10.1016/j.electacta.2016.11.171.

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27

Connell, John W. "The Effect of Low Earth Orbit Atomic Oxygen Exposure on Phenylphosphine Oxide-Containing Polymers". High Performance Polymers 12, n.º 1 (marzo de 2000): 43–52. http://dx.doi.org/10.1088/0954-0083/12/1/304.

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Thin films of phenylphosphine oxide-containing polymers were exposed to low Earth orbit aboard a space shuttle flight (STS-85) as part of flight experiment designated Evaluation of Space Environment and Effects on Materials (ESEM). This flight experiment was a cooperative effort between the NASA Langley Research Center (LaRC) and the National Space Development Agency of Japan (NASDA). The thin-film samples described herein were part of an atomic oxygen exposure (AOE) experiment and were exposed to primarily atomic oxygen (∼1×1019 atoms cm−2). The thin-film samples consisted of three phosphine oxide-containing polymers (arylene ether, benzimidazole and imide). Based on post-flight analyses using atomic force microscopy, x-ray photo-electron spectroscopy and weight loss data, it was found that the exposure of these materials to atomic oxygen (AO) produces a phosphorus oxide layer on the surface of the samples. Earlier work has shown that this layer provides a barrier towards further attack by AO. Consequently, these materials do not exhibit linear erosion rates which is in contrast with most organic polymers. Qualitatively, the results obtained from these analyses compare favourably with those obtained from samples exposed to AO and/or an oxygen plasma in ground-based exposure experiments. The results of the low Earth orbit AO exposure on these materials will be compared with those of ground-based exposure to AO.

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28

Chunbo, Wang, Jiang Haifu, Tian Dongbo, Qin Wei, Chen Chunhai, Zhao Xiaogang, Zhou Hongwei y Wang Daming. "Atomic oxygen effects on polymers containing silicon or phosphorus: Mass loss, erosion yield, and surface morphology". High Performance Polymers 31, n.º 8 (28 de noviembre de 2018): 969–76. http://dx.doi.org/10.1177/0954008318814150.

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The differences among polymers containing silicon or phosphorus, 20% polyhedral oligomeric silsesquioxane polyimide (20%-POSS-PI), 30% polysiloxane- block-polyimides (30%-PSX-PI), poly(siloxane imide) homopolymer (PSX-PI), and arylene ether phosphine oxide homopolymer (P-PPO), on mass loss, erosion yield, and surface morphology were elucidated. The tolerance against atomic oxygen (AO) was improved versus Kapton®H after introducing silicon or phosphorus to the polymers. The relative order of the mass loss was PSX-PI < P-PPO < 20%-POSS-PI < 30%-PSX-PI. In contrast, the erosion yields of 30%-PSX-PI, 20%-POSS-PI, and P-PPO decreased by orders of magnitude (PSX-PI declined by about two orders). The surface of Kapton®H was seriously eroded by AO exhibiting a “carpet-like” shape, and the roughness of the surface of Kapton®H became remarkable as the AO fluence increased. PSX-PI, P-PPO, 20%-POSS-PI, and 30%-PSX-PI at an AO fluence of 5.2 × 1020 atoms/cm2 had different surface morphologies, and the relative order of the surface roughness was PSX-PI < 30%-PSX-PI < 20%-POSS-PI < P-PPO. The 30%-PSX-PI and PSX-PI had minor mass losses and a smooth surface. This kind of material might replace inorganic coatings for applications in low earth orbit.

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29

Sandblom, Nicole, Tom Ziegler y Tristram Chivers. "A density functional study of the bonding in tertiary phosphine chalcogenides and related molecules". Canadian Journal of Chemistry 74, n.º 11 (1 de noviembre de 1996): 2363–71. http://dx.doi.org/10.1139/v96-263.

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The nature of the phosphorus–tellurium bond in tertiary phosphine tellurides is not well understood. There is also controversy over the nature of multiple bonding in the lighter chalcogenides and the related ylides and imides. Density functional theory (DFT) was used to investigate the interactions in the molecule, Me3PE (E = O, S, Se, Te, BH3, CH2, NH). The calculated PE bond energies and orbital populations reveal contributions from both σ donation from the phosphine and π back-donation to the phosphine in all of the above cases. Down the group from oxygen to tellurium, the PE bond weakens from 544 kJ mol−1 to 184 kJ mol−1, but multiple bonding becomes more significant with respect to the single bond. For E = BH3, the PB bond energy is 166 kJ mol−1. Trimethylphosphine ylide was found to have a π-bond order of 0.5, while that of trimethylphosphine imine is 0.6. For comparison, the oxides of trimethylamine and trimethylarsine were also calculated to examine the pnictogen–oxygen bond; Me3N does not participate in multiple bonding with oxygen, while the π-bond orders for Me3PO and Me3AsO were calculated as 0.7 and 0.6, respectively. Key words: phosphine chalcogenides, phosphine ylides, phosphine imides, DFT calculations

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30

Joshi, Ruma y Sofie P. Pasilis. "The effect of tributylphosphate and tributyl phosphine oxide on hydrogen bonding interactions between water and the 1-ethyl-3-methylimidazolium cation in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide". Journal of Molecular Liquids 209 (septiembre de 2015): 381–86. http://dx.doi.org/10.1016/j.molliq.2015.05.042.

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31

Faghihi, Khalil y Mohsen Hajibeygi. "Optically active and flame-retardant poly(amide-imide)s based on phosphine oxide moiety and N,N′-(pyromellitoyl)bis-l-amino acid in the main chain: Synthesis and characterization". Chinese Journal of Polymer Science 28, n.º 4 (19 de abril de 2010): 517–25. http://dx.doi.org/10.1007/s10118-010-9075-0.

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32

Faghihi, Khalil, Mohsen Hajibeygi y Meisam Shabanian. "Novel Flame-Retardant and Thermally Stable Poly(Amide-imide)s Based on Bicyclo[2,2,2]oct-7-Ene-2,3,5,6-Tetracarboxylic Diimide and Phosphine Oxide in the Main Chain: Synthesis and Characterization". Journal of the Chinese Chemical Society 56, n.º 3 (junio de 2009): 609–18. http://dx.doi.org/10.1002/jccs.200900091.

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33

Chen, Sheng, Qing Kang Zheng, Zhen Bao Li, Xin Lei Wang y Jian Wu Lan. "Synthesis and Properties of New Poly( Amide-Imide)s Based on Imide Dicarboxylic Acid". Advanced Materials Research 332-334 (septiembre de 2011): 1722–26. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1722.

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Two kinds of imide dicarboxylic acid monomers, 4,4'-bis(trimellitimido) diphenyl ether Ⅰ and p-trimellitimido-benzoic acid Ⅱ were successfully synthesized from 4,4'-diaminodiphenyl ether and p-aminobenzoic acid with trimellitic anhydride respectively.and used to synthesize a series of new aromatic poly(amide-imide)s (PAIs) by the tri-phenyl phosphite-activated polycondensation method. The preparation of PAIs was carried out using triphenyl phosphate and pyridine symtem. The PAIs had inherent viscosities of 0.55–1.46 dL g-1. PAI films were obtained by casting their N-Methyl-2-pyrrolidone (NMP) solution. Their cast films had tensile strengths ranging from 37.4 to 83.9 MPa. The glass-transition temperatures (measured by differential scanning calorimetry) were in the range of 265-310°C. According to thermogravimetric analysis, the polymers were fairly stable up to temperature around 420°C, and 10% weight losses in the temperature range of 474-550°C in nitrogen, that showed good thermal stabilities of these polymers.

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34

Vaquero, Mónica, Andrés Suárez, Sergio Vargas, Giovanni Bottari, Eleuterio Álvarez y Antonio Pizzano. "Highly Enantioselective Imine Hydrogenation Catalyzed by Ruthenium Phosphane-Phosphite Diamine Complexes". Chemistry - A European Journal 18, n.º 49 (7 de noviembre de 2012): 15586–91. http://dx.doi.org/10.1002/chem.201203193.

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35

Nomura, Mitsushiro, Chikako Takayama, Gerardo C. Janairo, Toru Sugiyama, Yasuo Yokoyama y Masatsugu Kajitani. "Novel Phosphine- and Phosphite-Induced Imido Migration to a Cyclopentadienyl Ring in an Imido-Bridged Cobaltadithiolene Complex". Organometallics 22, n.º 1 (enero de 2003): 195–98. http://dx.doi.org/10.1021/om0207212.

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36

Shoshan-Barmatz, V. "Stimulation of Ca2+ efflux from sarcoplasmic reticulum by preincubation with ATP and inorganic phosphate". Biochemical Journal 247, n.º 3 (1 de noviembre de 1987): 497–504. http://dx.doi.org/10.1042/bj2470497.

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Preincubation of sarcoplasmic reticulum with 1 mM-ATP completely inhibits Ca2+ accumulation and stimulates ATPase activity by over 2-fold. This effect of ATP is obtained only when the preincubation is carried out in the presence of Pi, but not with arsenate, chloride or sulphate. The inhibition by ATP of Ca2+ accumulation is pH-dependent, increasing as the pH is increased above 7.5. Inhibition of Ca2+ accumulation is observed on preincubation with ATP, but not with CTP, UTP, GTP, ADP, adenosine 5′-[beta gamma-methylene]triphosphate or adenosine 5′-[beta gamma-imido]triphosphate. The presence of Ca2+, but not Mg2+, during the preincubation, prevents the effect of ATP + Pi on Ca2+ accumulation. The ATP + Pi inhibition of Ca2+ accumulation is not due to modification of the ATPase catalytic cycle, but rather to stimulation of a rapid Ca2+ efflux from actively or passively loaded vesicles. This Ca2+ efflux is inhibited by dicyclohexylcarbodi-imide. Photoaffinity labelling of sarcoplasmic-reticulum membranes with 8-azido-[alpha-32P]ATP resulted in specific labelling of two proteins, of approx. 160 and 44 kDa. These proteins were labelled in the presence of Pi, but not other anions.

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37

Stubbs, J. M., K. F. Firth, B. J. Bridge, K. J. Berger, R. J. Hazlehurst, P. D. Boyle y J. M. Blacquiere. "Phosphine–imine and –enamido ligands for acceptorless dehydrogenation catalysis". Dalton Transactions 46, n.º 3 (2017): 647–50. http://dx.doi.org/10.1039/c6dt04088h.

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38

Vaquero, Monica, Andres Suarez, Sergio Vargas, Giovanni Bottari, Eleuterio Alvarez y Antonio Pizzano. "ChemInform Abstract: Highly Enantioselective Imine Hydrogenation Catalyzed by Ruthenium Phosphane-Phosphite Diamine Complexes." ChemInform 44, n.º 19 (18 de abril de 2013): no. http://dx.doi.org/10.1002/chin.201319056.

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39

Zabłocka, Maria, Alain Igau, Victorio Cadierno, Marek Koprowski y Jean-Pierre Majoral. "α-Phosphino-Imine Ligand Design". Phosphorus, Sulfur, and Silicon and the Related Elements 177, n.º 8-9 (agosto de 2002): 1965. http://dx.doi.org/10.1080/10426500213421.

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40

Soulivong, Daravong, Dominique Matt, Jack Harrowfield y Loïc Toupet. "A Long-Chain Phosphine Designed as a Metallomesogen Generator—Synthesis and Coordination Properties". Australian Journal of Chemistry 57, n.º 2 (2004): 157. http://dx.doi.org/10.1071/ch03264.

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The long-chain phosphine Me2PC≡C(p-C6H4CHNR C8) [L; RC8 = p-C6H4OC(O)(p-C6H4OC8H17)] has been prepared in two steps starting from 4-ethynylbenzaldehyde (1): (a) condensation of 1 with H2NRC8 (2) afforded the corresponding imine 3 (yield 86%) which displays liquid-crystalline behaviour; (b) deprotonation of 3 with LiNPri2 and subsequent reaction with Me2PCl gave a mixture of the phosphine–alkyne L and the precursor 3 (L : 3 = 60 : 40). Reaction of this mixture with [PtCl2(PhCN)2] produced cis-[PtCl2L2] (4) and provided an efficient means of separating the phosphine from 3. The crystal structure of imine 3 has been determined by single-crystal X-ray diffraction and analysis of this structure provides a basis for understanding both the mesogenic character of 3 and its absence in the complex 4.

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41

Zheng, Quande, Dejuan Zheng, Binghao Han, Shaofeng Liu y Zhibo Li. "Chromium complexes supported by the bidentate PN ligands: synthesis, characterization and application for ethylene polymerization". Dalton Transactions 47, n.º 38 (2018): 13459–65. http://dx.doi.org/10.1039/c8dt02834f.

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42

El Kaïm, Laurent, Aurélie Dos Santos y Marie Cordier. "Nef–Perkow–Mumm Cascade towards Imido Phosphate Derivatives". Synlett 28, n.º 19 (11 de agosto de 2017): 2637–41. http://dx.doi.org/10.1055/s-0036-1590856.

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A one-pot, four-component synthesis of imido phosphates has been achieved using a Nef–Perkow sequence followed by addition of carboxylic acid derivatives. The final imido moiety is formed via a Mumm rearrangement of an intermediate imidate.

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43

Wolfsberger, W. "N-(Halogendimethylsilyl)-1 -methylphospholanimine/N-(Halogenodimethylsilyl)-1 -methylphospholane Imines". Zeitschrift für Naturforschung B 55, n.º 7 (1 de julio de 2000): 557–60. http://dx.doi.org/10.1515/znb-2000-0701.

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N-Trimethylsilyl-1 -methylphospholane imine has been prepared by the Staudinger reaction of 1-methylphospholane with trimethylsilyl azide. Transsilylation reactions of the phosphine imine with dichloro or dibromodimethylsilane lead to dimeric N-(halogenodimethylsilyl)-l-methylphospholane imines with an ionic type of structure, containing a dicationic four-membered Si-N ring system. Upon heating, the chloro compound undergoes a reversible isomerization to give the corresponding covalent monomer.

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44

Gabrielli, Luca, Diego Núñez-Villanueva y Christopher A. Hunter. "Two-component assembly of recognition-encoded oligomers that form stable H-bonded duplexes". Chemical Science 11, n.º 2 (2020): 561–66. http://dx.doi.org/10.1039/c9sc04250d.

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45

Xu, Zhishan, Yuliang Yang, Xianglei Jia, Lihua Guo, Xingxing Ge, Genshen Zhong, Shujiao Chen y Zhe Liu. "Novel cyclometalated iridium(iii) phosphine-imine (P^N) complexes: highly efficient anticancer and anti-lung metastasis agents in vivo". Inorganic Chemistry Frontiers 7, n.º 5 (2020): 1273–83. http://dx.doi.org/10.1039/c9qi01492f.

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Iridium(iii)-based complexes with phosphine-imine (P^N) ligands are synthesized and authenticated. The combined treatment with Ir(iii) and BIX01294 potently inhibited tumour growth and lung metastasis in vitro and in vivo.

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46

Faghihi, Khalil, Masoumeh Soleimani, Shabnam Nezami y Meisam Shabanian. "Thermal and optical properties of new poly(amide-imide)-nanocomposite reinforced by layer silicate based on chiral n-trimellitylimido-L-valine". Macedonian Journal of Chemistry and Chemical Engineering 31, n.º 1 (15 de junio de 2012): 79. http://dx.doi.org/10.20450/mjcce.2012.59.

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Two new samples of poly(amide-imide)-montmorillonite reinforced nanocomposites containing N-trimellitylimido-L-valine moiety in the main chain were synthesized by a convenient solution intercalation technique. Poly(amide-imide) (PAI) 5 as a source of polymer matrix was synthesized by the direct polycondensation reaction of N-trimellitylimido-L-valine (3) with 4,4′-diaminodiphenyl ether 4 in the presence of triphenyl phosphite (TPP), CaCl2, pyridine and N-methyl-2-pyrrolidone (NMP). Morphology and structure of the resulting PA-nanocomposite films (5a) and (5b) with 10 and 20 % silicate particles were characterized by FTIR spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of clay dispersion and the interaction between clay and polymeric chains on the properties of nanocomposite films were investigated by using Uv-vis spectroscopy, thermogravimetric analysis (TGA) and water uptake measurements.

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47

Lorenzini, Fabio, Paolo Marcazzan, Brian O. Patrick y Brian R. James. "Synthesis, characterization, and X-ray structures of three iridium(III)-hydrido-cyclometallated-imine complexes, including the first reported hydrido-(η1-imine)-Ir complex". Canadian Journal of Chemistry 86, n.º 3 (1 de marzo de 2008): 253–60. http://dx.doi.org/10.1139/v07-153.

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Reactions of cis,trans,cis-[Ir(H)2(PPh3)2(solv)2]PF6 (solv = MeOH or Me2CO) with the imines HN=CPh2, (o-HOC6H4)C(Me)=NCH2Ph, and PhC(H)=N(p-F-C6H4) in MeOH or acetone under Ar give the complexes [IrH{NH=C(Ph)(o-C6H4)}(NH=CPh2)(PPh3)2]PF6 (3), [IrH{PhCH2N=C(Me)(o-C6H3OH)}(solv)(PPh3)2]PF6, where solv = MeOH (4) or Me2CO (4a), and [IrH{N(p-F-C6H4)=CH(o-C6H4)}(Me2CO)(PPh3)2]PF6 (5a), which have been isolated and characterized. The imine (C6F5)C(H)=NPh is unreactive toward the Ir precursors. The X-ray structures of 3, 4·2MeOH, and 5a·1/2Me2CO show an η2-N,C-imine moiety coordinated via the N atom and an orthometallated-C atom. Complex 3, which contains both an orthometallated imine and an η1-imine, is the first structurally characterized hydrido-(η1-imine)-Ir complex. Comparisons are made with data for the corresponding Rh systems.Key words: iridium, hydride complexes, imines, fluoroimines, phosphine complexes, orthometallation, crystallography, NMR spectroscopy.

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48

Jack, Kevin S., John C. Jeffery, Angela P. Leedham, Jason M. Lynam, Michael Niedzwiecki y Christopher A. Russell. "Syntheses and structures of bis(imido)organophosphine dianions". Canadian Journal of Chemistry 80, n.º 11 (1 de noviembre de 2002): 1458–62. http://dx.doi.org/10.1139/v02-144.

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A bis(imido)phosphine dianion, [R'P(NR)2]2 (R' = n-Bu, R = N-N=CPh2) is produced from the reaction of PCl3 with benzophenone hydrazone (1:3 equiv) in THFNEt3, followed by metallation of the reaction mixture with 3 equiv n-BuLi. A more straightforward synthesis of a comparable dianion (with R' = Ph, R = N-N=CPh2) is the reaction of PhPCl2 with benzophenone hydrazone (1:2 equiv) in THFNEt3, followed by metallation of the reaction mixture with 2 equiv n-BuLi.Key words: phosphorus, lithium, imido, complexes, X-ray.

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49

Li, Yan y Zhiqiang Zhang. "Mechanisms of phosphine-catalyzed [3+3] cycloaddition of ynones and azomethine imines: a DFT study". New Journal of Chemistry 43, n.º 34 (2019): 13600–13607. http://dx.doi.org/10.1039/c9nj01943j.

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50

Shyu, Shin-Guang, Ramsharan Singh, Chi-Jung Su y Kuan-Jiuh Lin. "Regiospecific Reaction between Dimetallic Phosphido-Bridged W−W Complexes and Phosphane Imide − Electrophilic Site Switching by Metal−Metal Bond Formation". European Journal of Inorganic Chemistry 2002, n.º 6 (junio de 2002): 1343–48. http://dx.doi.org/10.1002/1099-0682(200206)2002:6<1343::aid-ejic1343>3.0.co;2-6.

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