To see the other types of publications on this topic, follow the link: Substituted nitrogen and suphur.

Journal articles on the topic 'Substituted nitrogen and suphur'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Substituted nitrogen and suphur.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ajay, M. Chaturvedi &. Vikas Vijayvargiya. "SYNTHESIZED AND GEOMETRY OPTIMIZATION OF DIFFERENT SUBSTITUTED NITROGEN AND SULPHUR CONTAINING HETEROCYCLES." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES [FRTSSDS- June 2018] (June 22, 2018): 330–35. https://doi.org/10.5281/zenodo.1296246.

Full text
Abstract:
A series of some novel 2-(5-methyl-1, 3, 4-thiadiazole-2-yl)-1H-Benzimidazole and 2-(1H-benzimidazol-2-yl)-1,3-benzothiazole derivatives were designed and synthesized under microwave irradiation via multistep reaction. The structures of substituted nitrogen and suphur containing heterocycles were confirmed by 1H NMR, MS, IR. The antibacterial activities of substituted nitrogen and suphur containing heterocycles were determined. The antibacterial activity results indicated that the compounds Ib, Ie, and Jd exhibited good activity against Staphylococcus aureus, and the compounds Ic and If displa
APA, Harvard, Vancouver, ISO, and other styles
2

Howell, J'Lynn, Shelly D. Dueitt, and Steven E. Newman. "KENAF FIBER CORE AS A VERMICULITE SUBSTITUTE IN PEAT-BASED MEDIA FOR GROWING GREENHOUSE BEDDING PLANTS." HortScience 28, no. 5 (1993): 576d—576. http://dx.doi.org/10.21273/hortsci.28.5.576d.

Full text
Abstract:
The objective of this study was to determine the feasibility of using kenaf fiber core as a vermiculite substitute in sphagnum peat moss-based media for growing greenhouse plants. Fiber core is a by-product of kenaf, an alternative fiber crop, which is being evaluated in Mississippi. Begonia semperflorens `Vodka', Impatiens wallerana `Super Elfin Red', `Super Elfin Red Velvet' and `Blue Pearl', Catharanthus roseus `Cooler Peppermint', and Salvia splendens `Empire Lilac' were transplanted into 10 cm pots containing peat moss-based media modified with various forms of core and/or vermiculite. Fi
APA, Harvard, Vancouver, ISO, and other styles
3

Shadab, Mohd, and Mohammad Aslam. "Synthesis and Characterization of Some Transition Metal complexes with N-phenyl-N’-[substituted phenyl] Thiourea." Material Science Research India 11, no. 1 (2014): 83–89. http://dx.doi.org/10.13005/msri/110111.

Full text
Abstract:
A series of thiourea ligand , N-N'- diphenyl thiourea [I] [DPTH], N-phenyl-N'-[2-phenoyl] thiourea [II] [PPTH], N-phenyl-N'-[2-chlorophenyl] thiourea III [PCPTH], N-phenyl-N'- [5-chloro-2-methyl phenyl] thiourea IV [PCMPTH] and N- phenyl -N'-(5-chloro-2-methoxy phenyl) thiourea V (PCMTPTH) and their transition metal complexes of the type ML2 and ML2 Cl2 have been synthesized by reacting phenyl isothiocyanate with substituted aniline and transition metal salts. These newly synthesized ligands and their complexes were characterized by elemental and spectral studies. Based upon these studies it w
APA, Harvard, Vancouver, ISO, and other styles
4

Myers, Deborah J., Magali Ferrandon, A. Jeremy Kropf, et al. "Nitric Oxide Probe Molecule Studies of Iron-Nitrogen-Carbon PEMFC Oxygen Reduction Reaction Electrocatalysts." ECS Meeting Abstracts MA2022-01, no. 35 (2022): 1446. http://dx.doi.org/10.1149/ma2022-01351446mtgabs.

Full text
Abstract:
The highest oxygen reduction reaction (ORR) activities in acidic environments for platinum group metal-free electrocatalysts have been achieved for materials derived from iron, nitrogen, and carbon-containing precursors such as iron-substituted zinc-based zeolitic imidazolate frameworks (ZIF).[1-3] These precursors are typically heat treated in an inert atmosphere at temperatures ranging from 900 to 1100°C to form the ORR-active material. In addition to their high intrinsic activity, under certain preparation conditions these catalysts are free of crystalline iron species, with iron atomically
APA, Harvard, Vancouver, ISO, and other styles
5

Taylor, Barry R., and H. Gerald Jones. "Litter decomposition under snow cover in a balsam fir forest." Canadian Journal of Botany 68, no. 1 (1990): 112–20. http://dx.doi.org/10.1139/b90-016.

Full text
Abstract:
In a subalpine balsam fir forest in Quebec, Canada, mass losses, respiration rates, and nitrogen and sulphur dynamics were measured on fir needles, birch leaves, lichens (mixed species), and small twigs decomposing under deep (> 1.5 m) winter snow for 6 months. Mass losses ranged from <6% (twigs) to 70% (lichens) and relative decomposition rates of needles and leaves were reversed from those expected at higher temperatures. Isolation of fir needles from direct contact with the snow did not affect decay rate, nor was decay accelerated by spring snowmelt. In situ respiration rates increase
APA, Harvard, Vancouver, ISO, and other styles
6

Abun Abun, Rendi R.O. Putra, Kiki Haetami, and Rahmad Fani Ramadhan. "Metabolizable energy and nitrogen retention of ration of super native chicken contains fermented catfish waste." GSC Biological and Pharmaceutical Sciences 30, no. 1 (2025): 001–10. https://doi.org/10.30574/gscbps.2025.30.1.0503.

Full text
Abstract:
The study aimed to explore fermented catfish waste product (FCWP) by microbes L. paracasei, B. subtilis, and S. cerevisiae as a substitute for fishmeal with observations on metabolizable energy and nitrogen retention of the ration. The study used 24 14-week-old Super Native Chickens which were kept for 14 days. The experimental design used was a Complete Random Design with 6 treatments and 4 replicates. The treatments given were: R0 (basal ration, 15% protein and ME 2,750 kcal/kg); R1 (basal ration, containing 5% FCWP); R2 (basal ration, containing 10% FCWP); R3 (basal ration, containing 15% F
APA, Harvard, Vancouver, ISO, and other styles
7

Lentes, Pascal, Jeremy Rudtke, Thomas Griebenow, and Rainer Herges. "Substituted nitrogen-bridged diazocines." Beilstein Journal of Organic Chemistry 17 (June 25, 2021): 1503–8. http://dx.doi.org/10.3762/bjoc.17.107.

Full text
Abstract:
Novel nitrogen-bridged diazocines (triazocines) were synthesized that carry a formyl or an acetyl group at the CH2NR-bridge and bromo- or iodo-substituents at the distant phenyl ring. The photophysical properties were investigated in acetonitrile and water. As compared to previous approaches the yields of the intramolecular azo cyclizations were increased (from ≈40 to 60%) using an oxidative approach starting from the corresponding aniline precursors. The Z→E photoconversion yields in acetonitrile are 80–85% and the thermal half-lives of the metastable E configurations are 31–74 min. Particula
APA, Harvard, Vancouver, ISO, and other styles
8

Mishra, Amit, Narendra Kumar, Rajiv Kumar, Robin Kumar, and Dinesh Tomar. "Mineralization of carbon, nitrogen, phosphorus and sulphur from different organic wastes in silty clay loam soils." Journal of Applied and Natural Science 8, no. 1 (2016): 16–22. http://dx.doi.org/10.31018/jans.v8i1.738.

Full text
Abstract:
Mineralization of carbon, nitrogen, phosphorus and suphur was studied by incubating soil samples for 90 days at 30°C temperature with four different organic materials viz. Press mud, sugarcane trash, paper mill bagasse and pine needle. The results showed that the carbon mineralization in soil was significantly higher from sugarcane trash followed by press mud as compared to control. The cumulative percent of carbon mineralization increased with incubation period and maximum mineralization was recorded at 90 DOI (days after incubation). The maximum cumulative percent N-mineralization (16.88%)
APA, Harvard, Vancouver, ISO, and other styles
9

Abun, Abun, R. Oktaviana Putra Rendi, and Haetami Kiki. "Metabolizable energy and nitrogen retention of local chickens fed rations containing fermented catfish waste." GSC Biological and Pharmaceutical Sciences 23, no. 3 (2023): 138–48. https://doi.org/10.5281/zenodo.10964879.

Full text
Abstract:
The study aimed to determine the effect of fermented catfish waste (FCW) by microbes&nbsp;<em>Lactobacillus paracasei</em>,&nbsp;<em>Bacillus subtilis</em>, and&nbsp;<em>Saccharomyces cerevisiae</em> (LBS) in rations as a substitute for fish meal on metabolizable energy and nitrogen retention. The study used local chickens (super native chickens / SNC) aged 14 weeks, as many as 24 heads, kept for 14 days. The experimental design was completely randomized, with six treatments and four repeats. Ration treatment is R0 (Lower control ration, protein 15% and ME 2,750 kcal/kg, without the use of FCW
APA, Harvard, Vancouver, ISO, and other styles
10

Lemon, Christopher M., and Penelope J. Brothers. "The synthesis, reactivity, and peripheral functionalization of corroles." Journal of Porphyrins and Phthalocyanines 15, no. 09n10 (2011): 809–34. http://dx.doi.org/10.1142/s1088424611003896.

Full text
Abstract:
Corroles are unusual macrocycles that often exhibit chemical reactivity that is distinct from their closely related porphyrin cousins. Standard organic transformations with corroles often result in the formation of unexpected products. A survey of synthetic methods for the preparation of both meso-substituted and β-substituted corroles will give an overview of the different synthetic strategies. This review provides a comprehensive description of the chemical reactivity and functionalization of corroles, focusing especially on reactions at the periphery of the macrocycle. Formylation, nitratio
APA, Harvard, Vancouver, ISO, and other styles
11

Journal, Baghdad Science. "Synthesis of Some Heterocyclic Compounds Derived from 2-Mercapto Benzoxazole." Baghdad Science Journal 10, no. 3 (2013): 766–78. http://dx.doi.org/10.21123/bsj.10.3.766-778.

Full text
Abstract:
New series of 2-mecapto benzoxazole derivatives (1-20) incorporated into fused to different nitrogen and suphur containing heterocyclic were prepared from 2-meracpto benzoxazole, when treated with hydrazine hydrate to afford 2-hydrazino benzoxazol (1). Compound (1) converted to a variety of pyridazinone andphthalazinone derivatives (2-4) by reaction with different carboxylic anhydride. Also, reaction of (1) with phenyl isothiocyanate and ethyl chloro acetate afforded 3-phenyl-1,3-thiazolidin-2,4-dione-2-(benzoxazole-2-yl-hydrazone) (6). Azomethines (7-10) were prepared through reaction of (1)
APA, Harvard, Vancouver, ISO, and other styles
12

Askar, Firyal W., Huda A. Hassan, and Nahida A. Jinzeel. "Synthesis of Some Heterocyclic Compounds Derived from 2-Mercapto Benzoxazole." Baghdad Science Journal 10, no. 3 (2013): 766–78. http://dx.doi.org/10.21123/bsj.2013.10.3.766-778.

Full text
Abstract:
New series of 2-mecapto benzoxazole derivatives (1-20) incorporated into fused to different nitrogen and suphur containing heterocyclic were prepared from 2-meracpto benzoxazole, when treated with hydrazine hydrate to afford 2-hydrazino benzoxazol (1). Compound (1) converted to a variety of pyridazinone andphthalazinone derivatives (2-4) by reaction with different carboxylic anhydride. Also, reaction of (1) with phenyl isothiocyanate and ethyl chloro acetate afforded 3-phenyl-1,3-thiazolidin-2,4-dione-2-(benzoxazole-2-yl-hydrazone) (6). Azomethines (7-10) were prepared through reaction of (1)
APA, Harvard, Vancouver, ISO, and other styles
13

Abun Abun, Rendi R. Oktaviana Putra, and Kiki Haetami. "Metabolizable energy and nitrogen retention of local chickens fed rations containing fermented catfish waste." GSC Biological and Pharmaceutical Sciences 25, no. 3 (2023): 138–48. http://dx.doi.org/10.30574/gscbps.2023.25.3.0531.

Full text
Abstract:
The study aimed to determine the effect of fermented catfish waste (FCW) by microbes Lactobacillus paracasei, Bacillus subtilis, and Saccharomyces cerevisiae (LBS) in rations as a substitute for fish meal on metabolizable energy and nitrogen retention. The study used local chickens (super native chickens / SNC) aged 14 weeks, as many as 24 heads, kept for 14 days. The experimental design was completely randomized, with six treatments and four repeats. Ration treatment is R0 (Lower control ration, protein 15% and ME 2,750 kcal/kg, without the use of FCW); R1 (R0 contains 5% FCW); R2 (R0 contain
APA, Harvard, Vancouver, ISO, and other styles
14

Wladislaw, B., L. Marzorati, and S. Lima Netto. "SOME SULFUR AND NITROGEN SUBSTITUTED XYLOQUINONES." Phosphorous and Sulfur and the Related Elements 33, no. 3-4 (1987): 173–77. http://dx.doi.org/10.1080/03086648708074298.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Hammond, Karl D., Fulya Dogan, Geoffrey A. Tompsett, et al. "Spectroscopic Signatures of Nitrogen-Substituted Zeolites." Journal of the American Chemical Society 130, no. 45 (2008): 14912–13. http://dx.doi.org/10.1021/ja8044844.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Milokhov, Demyd S., Olga V. Khilya, Alexander V. Turov, Volodymyr V. Medviediev, Oleg V. Shishkin, and Yulian M. Volovenko. "Hydroxypropyl substituted nitrogen bridgehead fused cyanopyridines." Tetrahedron 70, no. 6 (2014): 1214–22. http://dx.doi.org/10.1016/j.tet.2013.12.074.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Glenis, S., S. Cooke, X. Chen, and M. M. Labes. "Photophysical properties of nitrogen substituted fullerenes." Synthetic Metals 70, no. 1-3 (1995): 1313–16. http://dx.doi.org/10.1016/0379-6779(94)02863-t.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Y. RAMAKRISHNA, SUBEDAR SINGH, and S.S. PARIHAR. "Influence of irrigation regime and nitrogen management on productivity, nitrogen uptake and water use by rice (Oryza sativa)." Indian Journal of Agronomy 52, no. 2 (2001): 102–6. http://dx.doi.org/10.59797/ija.v52i2.4901.

Full text
Abstract:
A field experiment was conducted on deep sandy clay-loam soil (Typic Haplustepts) at New Delhi, during 2002 and 2003 to investigate the effect of irrigation regimes, viz. continuous submergence, 1-day drainage, and 3-day drainage, and integrated nutrient management, viz. the control, 75% N of recommended fertilizer dose (RFD), 100% N of RFD, 150% of RFD, 75% N of RFD out of which 25% N substituted by farmyard manure (FYM), 100% N of RFD out of which 25% N substituted by FYM, 150% N of RFD of which 25% substituted by FYM and 75% N of RFD + biofertilizer, on the productivity of rice (cv. 'Pusa S
APA, Harvard, Vancouver, ISO, and other styles
19

Müller, Matthias, Stefan Behnle, Cäcilia Maichle-Mössmer, and Holger F. Bettinger. "Boron–nitrogen substituted perylene obtained through photocyclisation." Chem. Commun. 50, no. 58 (2014): 7821–23. http://dx.doi.org/10.1039/c4cc01424c.

Full text
Abstract:
A BN substituted hexabenzotriphenylene (B<sub>3</sub>N<sub>3</sub>) closes one C–C-bond upon irradiation in the presence of iodine to yield a phenanthrene annelated B<sub>3</sub>N<sub>3</sub> tribenzoperylene. Upon hydrolysis a B<sub>2</sub>N<sub>2</sub> dibenzoperylene is obtained.
APA, Harvard, Vancouver, ISO, and other styles
20

Broggini, Gianluigi, Luca Bruché, Gaetano Zecchi, and Tullio Pilati. "1,3-Dipolar cycloadditions to nitrogen-substituted allenes." J. Chem. Soc., Perkin Trans. 1, no. 3 (1990): 533–39. http://dx.doi.org/10.1039/p19900000533.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Hammond, Karl D., Murad Gharibeh, Geoffrey A. Tompsett, et al. "Optimizing the Synthesis of Nitrogen-Substituted Zeolites." Chemistry of Materials 22, no. 1 (2010): 130–42. http://dx.doi.org/10.1021/cm902511a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Yoon, Songhak, Kwanghyo Son, Stefan G. Ebbinghaus, Marc Widenmeyer, and Anke Weidenkaff. "Ferromagnetism in nitrogen and fluorine substituted BaTiO3." Journal of Alloys and Compounds 749 (June 2018): 628–33. http://dx.doi.org/10.1016/j.jallcom.2018.03.221.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Appendino, Giovanni, Jasmin Jakupovic, Marcella Varese, Emanuela Belloro, Bruno Danieli, and Ezio Bombardelli. "Synthesis of 7,9-nitrogen-substituted paclitaxel derivatives." Tetrahedron Letters 37, no. 43 (1996): 7837–40. http://dx.doi.org/10.1016/0040-4039(96)01744-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Wodrich, Matthew D., Alfredo Vargas, Pierre-Yves Morgantini, Gabriel Merino, and Clémence Corminboeuf. "What governs nitrogen configuration in substituted aminophosphines?" Journal of Physical Organic Chemistry 22, no. 2 (2009): 101–9. http://dx.doi.org/10.1002/poc.1431.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Ragnarsson, Ulf, Leif Grehn, Hernani L. S. Maia, and Luis S. Monteiro. "Cyclic Voltammetry Studies on Substituted Arenesulfonhydrazides." Journal of Chemical Research 2000, no. 1 (2000): 6–7. http://dx.doi.org/10.3184/030823400103165680.

Full text
Abstract:
Additional Z and Boc groups on the vicinal nitrogen of sulfonyl hydrazines have no significant effect on the cathodic potential of the sulfonyl functions as measured by cyclic voltammetry, whereas a Boc group on the geminal nitrogen invariably gives rise to shifts of about 0.2 V to less negative potential similar to those previously observed for derivatives of amines.
APA, Harvard, Vancouver, ISO, and other styles
26

Kaválek, Jaromír, Vladimír Macháček, Gabriela Svobodová, and Vojeslav Štěrba. "Kinetics of acid-catalyzed cyclization of substituted hydantoinamides to substituted hydantoins." Collection of Czechoslovak Chemical Communications 52, no. 8 (1987): 1999–2004. http://dx.doi.org/10.1135/cccc19871999.

Full text
Abstract:
The kinetics of acid-catalyzed cyclization of the hydantoinamides type R3-N(5)H-CO-N(3)R2-CH2-CO-N(1)HR1 (R1, R2, R3 = H and/or CH3) has been studied in 0·5 to 5 mol l-1 hydrochloric acid. The cyclization rate is limited by the rate of the attack of nitrogen atom N(5) on the carbon atom of the protonated amide group. The dissociation constants of the protonated hydantoinamides and rate constants of their cyclizations have been determined. Replacement of hydrogen atom by methyl group at the N(5) nitrogen atom accelerates the cyclization about two times., the same substitution at N(3) accelerate
APA, Harvard, Vancouver, ISO, and other styles
27

Dipak, Ghodke Pallavi, and Takankhar Vilas Govindrao. "Soyabean (Glycine max) Response to Applied Fertilizers through INM on Deep Black Soil of Marathwada Region in Relation to Available Nitrogen, Phosphorus, Potassium and Suphur." International Journal of Current Microbiology and Applied Sciences 9, no. 11 (2020): 1609–14. http://dx.doi.org/10.20546/ijcmas.2020.911.191.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Reddy, T. Sheshashena, Ramesh Maragani, Bhausaheb Dhokale, Shaikh M. Mobin, and Rajneesh Misra. "Heteroatom-connected ferrocenyl substituted naphthalimides." RSC Advances 6, no. 10 (2016): 7746–54. http://dx.doi.org/10.1039/c5ra26369g.

Full text
Abstract:
A family of heteroatom (oxygen, sulphur and nitrogen) connected ferrocenyl naphthalimides 3a–3f were designed and synthesized by the nucleophilic aromatic substitution and Buchwald coupling reactions.
APA, Harvard, Vancouver, ISO, and other styles
29

Fariz Amirli, N.A.Guliyeva, G.Sh.Mammadova, Fariz Amirli, N. A. Guliyeva, G. Sh Mammadova, and H. N. Guliyev, T. N. Akylbekova H.N.Guliyev, T.N. Akylbekova. "OBTAINING NITROGEN CONTAININ DIKARBOKSILAT." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 148, no. 02-02 (2024): 358. https://doi.org/10.36962/pahtei14802-022024-358.

Full text
Abstract:
We have conducted research into the synthesis and analysis of nellylated-indazole compounds. These compounds were produced through a process involving substituted hydroxycyclohexa-nones, hydrazine hydrate, and phenacyl bromide. Our investigation revealed that, depending on the specific structure of the compounds involved, the reaction can proceed via both nitrogen and oxygen alkylation pathways. The examination of the reactions between 2,6-dicarboxylates and amine derivative hydrochlorides revealed a novel finding: the employment of potassium carbonate as a base facilitates the desired directi
APA, Harvard, Vancouver, ISO, and other styles
30

Franceschi, Giovanni, Marco Alpegiani, Angelo Bedeschi, Ettore Perrone, and Franco Zarini. "2-(Heteroaroma-substituted)methyl Penems. III. Nitrogen Derivatives." HETEROCYCLES 27, no. 6 (1988): 1329. http://dx.doi.org/10.3987/com-88-4524.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Chen, Longsheng, Xiaolong Li, Zhouquan Mao, Jiang Zhang, and Xi Chen. "Magnetic Augment in the Nitrogen Substituted Bismuth Ferrite." IEEE Transactions on Magnetics 51, no. 11 (2015): 1–3. http://dx.doi.org/10.1109/tmag.2015.2447546.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Bravo, P., G. Resnati, and C. Zappalà. "Synthesis of enantiomerically pure, nitrogen substituted fluoroorganic compounds." Journal of Fluorine Chemistry 54, no. 1-3 (1991): 287. http://dx.doi.org/10.1016/s0022-1139(00)83796-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Milokhov, Demyd S., Olga V. Khilya, Alexander V. Turov, Volodymyr V. Medviediev, Oleg V. Shishkin, and Yulian M. Volovenko. "ChemInform Abstract: Hydroxypropyl Substituted Nitrogen Bridgehead Fused Cyanopyridines." ChemInform 45, no. 29 (2014): no. http://dx.doi.org/10.1002/chin.201429186.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Johnson, MD, CA Mcintosh та VC Reinsborough. "Binding of Nitrogen Heterocyclic Ligands and Tetraphenyl-Substituted Ions by β-Cyclodextrins". Australian Journal of Chemistry 47, № 1 (1994): 187. http://dx.doi.org/10.1071/ch9940187.

Full text
Abstract:
Binding constants obtained spectrofluorometrically are reported for β- cyclodextrin (substituted and unsubstituted ) inclusion of several commonly used nitrogen heterocyclic ligands and tetraphenyl-substituted ions.
APA, Harvard, Vancouver, ISO, and other styles
35

Khamkaeo, Sakarn, Teerachote Pakornchote, Annop Ektarawong, Thiti Bovornratanaruks, and Kenta Hongo. "First principles study on thermal conductivity of nitrogen substituted diamane." Journal of Physics: Conference Series 2431, no. 1 (2023): 012057. http://dx.doi.org/10.1088/1742-6596/2431/1/012057.

Full text
Abstract:
Abstract 2D materials have been in the spotlight due to their impressive properties since graphene was successfully synthesized. A single-layered diamond or diamane, which has high thermal conductivity and high stiffness inherited from its bulk counterpart, is a candidate for heat dissipating applications in nanodevices. Unfortunately, non-passivated dangling bonds on the surface of pristine diamane can cause its structural instability. Recent theoretical studies have suggested that site-specific substitution of N for C could stabilize the diamane’s structure without surface termination. Besid
APA, Harvard, Vancouver, ISO, and other styles
36

Pham, Hai Duong, Godfrey Gumbs, Wu-Pei Su, Ngoc Thanh Thuy Tran, and Ming-Fa Lin. "Unusual features of nitrogen substitutions in silicene." RSC Advances 10, no. 53 (2020): 32193–201. http://dx.doi.org/10.1039/d0ra04470a.

Full text
Abstract:
The quasiparticle properties resulting from charge and spin are clearly identified in nitrogen-substituted silicenes, for which a theoretical framework is successfully developed from first-principles calculations.
APA, Harvard, Vancouver, ISO, and other styles
37

Namiki, Ryota, Takuya Suyama, Chihiro Izawa, et al. "Chemical State of Nitrogen in Nitrogen-Doped Hydroxyapatite Ceramics with Enhanced Bioactivity." Key Engineering Materials 720 (November 2016): 215–18. http://dx.doi.org/10.4028/www.scientific.net/kem.720.215.

Full text
Abstract:
The chemical state of nitrogen which was induced into crystal structure of hydroxyapatite by nitrogen-doping method (N-doping method) was examined. Determination of lattice constants by powder X-ray diffraction (XRD) showed that the nitrogen species induced by N-doping method substituted the OH- ion in the crystal structure of hydroxyapatite. In addition, Fourier transform infrared spectroscopy (FT-IR) and temperature programmed desorption-mass spectroscopy (TPD-MS) determined that the chemical state of nitrogen induced by N-doping method was N2O.
APA, Harvard, Vancouver, ISO, and other styles
38

Andorfer, Mary C., Hyun June Park, Jaylie Vergara-Coll, and Jared C. Lewis. "Directed evolution of RebH for catalyst-controlled halogenation of indole C–H bonds." Chemical Science 7, no. 6 (2016): 3720–29. http://dx.doi.org/10.1039/c5sc04680g.

Full text
Abstract:
RebH variants capable of chlorinating substituted indoles ortho-, meta-, and para- to the indole nitrogen were evolved by directly screening for altered selectivity on deuterium-substituted probe substrates using mass spectrometry.
APA, Harvard, Vancouver, ISO, and other styles
39

Svoboda, Petr, Oldřich Pytela, and Miroslav Večeřa. "Kinetics and mechanism of acid catalyzed decomposition of substituted 1,3-diphenyltriazenes." Collection of Czechoslovak Chemical Communications 52, no. 9 (1987): 2217–24. http://dx.doi.org/10.1135/cccc19872217.

Full text
Abstract:
The kinetics of acid catalyzed decomposition of 3-substituted and 1,3-disubstituted 1,3-diphenyl-3-methyltriazenes have been studied in 40% aqueous ethanolic buffers at 25 °C. The reaction constant for substitution of the phenyl ring at the 3 position of the triazene chain has been determined and the reaction constants of the protonation and bond splitting between the nitrogen atoms 2 and 3 have been estimated. By the covariance analysis it has been found that the standard constants of the Hammett relation are better than the constants determined in the media of organic solvents. Also estimate
APA, Harvard, Vancouver, ISO, and other styles
40

Yan, Chao-Guo, Qi-Fang Wang, Xi-Mei Cai, and Jing Sun. "One-pot multicomponent synthesis of substituted 5,7-dihydro-1,6-naphthyridines and 5,6,7,8-tetrahydroquinolines." Open Chemistry 6, no. 2 (2008): 188–98. http://dx.doi.org/10.2478/s11532-008-0003-x.

Full text
Abstract:
AbstractAn one-pot approach was developed for the synthesis of substituted 5,7-dihydro-1,6-naphthyridines and 5,6,7,8-tetrahydroquinolines with moderate to good yields. This pathway is a modified two-step synthesis of Kröhnke pyridine and involves a four-component tandem reaction of N-phenacylpyridinium bromide, aromatic aldehydes, substituted or nitrogen-containing cyclic ketones and a nitrogen source. This multi-component reaction is performed using microwave irradiation heating of the reaction substrates under an environment of NH4OAc/HOAc.
APA, Harvard, Vancouver, ISO, and other styles
41

Bende, Attila, and Ioan Turcu. "Nitrogen Substituted Phenothiazine Derivatives: Modelling of Molecular Self-Assembling." International Journal of Molecular Sciences 12, no. 5 (2011): 3102–16. http://dx.doi.org/10.3390/ijms12053102.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Bolm, Carsten, Salih Özçubukçu, Ellen Schmitt, and Annika Leifert. "A General and Efficient Synthesis of Nitrogen-Substituted Ferrocenes." Synthesis 2007, no. 3 (2007): 389–92. http://dx.doi.org/10.1055/s-2006-958961.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Subbarao, S. N. "Nitrogen-14 nuclear quadrupole resonance study of substituted nitrobenzenes." Journal of Chemical Physics 67, no. 9 (1999): 3947. http://dx.doi.org/10.1063/1.435411.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Zhang, Men, Zhong-Min Su, Yong-Guang Li, and Hong-Liang Xu. "Novel singlet fission chromophores: Boron/nitrogen para-substituted acenes." Dyes and Pigments 231 (December 2024): 112414. http://dx.doi.org/10.1016/j.dyepig.2024.112414.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Morgan, Peter E. D. "Pauling's second crystal rule for nitrogen-substituted crystal structures." Journal of Materials Science 21, no. 12 (1986): 4305–9. http://dx.doi.org/10.1007/bf01106546.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Carvalho, A. C. M., and M. C. dos Santos. "Nitrogen-substituted nanotubes and nanojunctions: Conformation and electronic properties." Journal of Applied Physics 100, no. 8 (2006): 084305. http://dx.doi.org/10.1063/1.2357646.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Tennakone, K., C. T. K. Thaminimulla, and J. M. S. Bandara. "Nitrogen photoreduction by vanadium(III)-substituted hydrous ferric oxide." Journal of Photochemistry and Photobiology A: Chemistry 68, no. 2 (1992): 131–35. http://dx.doi.org/10.1016/1010-6030(92)85176-u.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Chavez, David E., Michael A. Hiskey, and Richard D. Gilardi. "Novel High-Nitrogen Materials Based on Nitroguanyl-Substituted Tetrazines." Organic Letters 6, no. 17 (2004): 2889–91. http://dx.doi.org/10.1021/ol049076g.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Lal, Sohan, Lovely Mallick, Sundaram Rajkumar, et al. "Synthesis and energetic properties of high-nitrogen substituted bishomocubanes." Journal of Materials Chemistry A 3, no. 44 (2015): 22118–28. http://dx.doi.org/10.1039/c5ta05380c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Bravo, Pierfrancesco, Massimo Pregnolato, and Giuseppe Resnati. "Asymmetric synthesis of oxygen- and nitrogen-substituted difluoromethylene products." Journal of Organic Chemistry 57, no. 9 (1992): 2726–31. http://dx.doi.org/10.1021/jo00035a035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!