Relevant bibliographies by topics / Symmetrically coordinated bond

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Academic literature on the topic 'Symmetrically coordinated bond'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Symmetrically coordinated bond"

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Skokan, Shayna R., Monica M. Reeson, Kayode D. Oshin, Anastasiya I. Vinokur, John A. Desper та Christopher J. Levy. "Crystal structure of {(R)-N2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine-κ4N,N′,N′′,N′′′}(trifluoromethanesulfonato-κO)zinc(II)} trifluoromethanesulfonate dichloromethane 1.5-solvate". Acta Crystallographica Section E Crystallographic Communications 73, № 7 (2017): 949–53. http://dx.doi.org/10.1107/s2056989017008027.

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The zinc(II) atom in the title compound, [Zn(C48H31N4)(CF3SO3)](CF3SO3)·1.5CH2Cl2, adopts a distorted five-coordinate square-pyramidal geometry. It is coordinated by one trifluoromethanesulfonate ligand and four N atoms of theN2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine ligand. The complex is present as a single-strandedP-helimer monohelical structure incorporating π–π and/or σ–π interactions. One of the imine bonds present in the original ligand framework is reduced, leading to variations in bond lengths and torsion angles for each s
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Zaitsev, Kirill V., Sergey S. Karlov, Galina S. Zaitseva, Ali Alizade, and Yuri L. Slovokhotov. "Crystal structure of 2,2,3,3-tetramethyl-1,1,1,4,4,4-hexaphenyltetragermane." Acta Crystallographica Section E Structure Reports Online 70, no. 12 (2014): o1273—o1274. http://dx.doi.org/10.1107/s160053681402501x.

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The molecule of the title compound, C40H42Ge4, lies with its central Ge—Ge bond on an inversion centre giving rise to a zigzag backbone of four tetrahedrally coordinated Ge atoms. The symmetrically independent Ge—Ge bonds are slightly shorter than in other organotetragermanes whereas the Ge—CPh(Ph = phenyl) and Ge—CMe(Me = methyl) distances have their usual values. In the crystal, (010) layers of Ph6Me4Ge4molecules with a parallel orientation of the Ge4backbone exist, held together by van der Waals forces only. Main bond lengths in organo-substituted oligogermanes are compared.
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Gavrish, Sergey P., Sergiu Shova та Yaroslaw D. Lampeka. "Crystal structure of poly[(μ6-benzene-1,3,5-tricarboxylato)tris(1-methylpyrrolidin-2-one)nitratodizinc(II)]". Acta Crystallographica Section E Crystallographic Communications 78, № 12 (2022): 1253–56. http://dx.doi.org/10.1107/s2056989022011045.

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The asymmetric unit of the title compound, [Zn2(C9H3O6)(NO3)(C5H9NO)3] n , I, consists of two different zinc(II) ions bridged by the carboxylate group of benzene-1,3,5-tricarboxylate (BTC3−). The Zn1 center is tetra-coordinated by the carboxylate O atoms of three symmetrically equivalent BTC3− anions and one nitrate O atom in a distorted tetrahedral geometry with Zn—Ocarboxylate bond lengths (average value 1.958 Å) slightly shorter than the Zn—Onitrate distance [2.013 (6) Å]. The Zn2 center is hexa-coordinated by three O atoms from the carboxylic groups of different BTC3− linkers and three O a
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Ourari, Ali, Chahinaz Zoubeidi, Sofiane Bouacida, Wassila Derafa та Hocine Merazig. "Crystal structure of bis(2-{[(3-bromopropyl)imino]methyl}phenolato-κ2N,O)copper(II)". Acta Crystallographica Section E Crystallographic Communications 71, № 2 (2015): m33—m34. http://dx.doi.org/10.1107/s2056989015001309.

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In the title compound, [Cu(C10H11BrNO)2], the asymmetric unit consists of one-half of the molecule, the other half being generated by an inversion centre. Hence the CuIIcation is symmetrically coordinated by two bidentate Schiff base anions in a slightly distorted square-planar environment with Cu—O and Cu—N bond lengths of 1.8786 (19) and 2.009 (2) Å, respectively. In the crystal, individual molecules are packed in alternating zigzag layers parallel to (001). Weak C—H...π interactions exist between the molecules.
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Schumanna, Herbert, Igor L. Fedushkin, Markus Hummert, Giovanna Scarel, Emiliano Bonera та Marco Fanciulli. "Crystal and Molecular Structure of [(η5-C5H4SiMe3)2LuCl]2: A Precursor for the Production of Lu2O3 Films". Zeitschrift für Naturforschung B 59, № 9 (2004): 1035–38. http://dx.doi.org/10.1515/znb-2004-0914.

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The single crystal X-ray diffraction study of [(η5-C5H4SiMe3)2LuCl]2, prepared from LuCl3 and Na[C5H4SiMe3], shows the compound to be a centrosymmetric dimer with two η5-bonded cyclopentadienyl rings and two symmetrically bridging chlorine atoms coordinated to each of the two metal centers. The coordination geometry around the lutetium atoms is that of a distorted pseudo tetrahedron. The Lu-C(Cp) distances lie within the narrow range of 2.571 - 2.608 Å . The Lu-Cl bond lengths are 2.639(1) and 2.653(1) Å . The crystal structure shows no significant intermolecular contacts.
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Hašek, Jindřich, Jan Ondráček, Pavel Karen, and Jaroslav Bauer. "The crystal and molecular structure of scandium formate." Collection of Czechoslovak Chemical Communications 55, no. 2 (1990): 426–34. http://dx.doi.org/10.1135/cccc19900426.

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The structure of Sc(HCOO)3 was refined up to R = 0.046. The substance crystallizes in the monoclinic system, space group P21/c, a = 10.340(2), b = 6.631(1), c = 9.027(2) Å, β = 98.11(2)°, Z = 4. Scandium atoms are placed in the two symmetrically non-equivalent centres of symmetry thus forming alternating layers parallel to the plane of b,c. All formate oxygens are coordinated to Sc atoms thus forming a three-dimensional net with octahedral coordination of both independent Sc atoms. C-H bonds are oriented in between the nearest oxygens of neighbouring formate groups, but only one contact is suf
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Perdih, Franc, Milenko Korica, Lorena Šebalj, and Tomislav Balić. "Anion Influence on Supramolecular Interactions in Exo-Coordinated Silver(I) Complexes with N2O2 Schiff Base Macrocycle." Crystals 13, no. 1 (2022): 50. http://dx.doi.org/10.3390/cryst13010050.

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Silver(I) complexes with aza-oxa macrocyclic Schiff bases L (L = 1,5-diaza-2,4:7,8:16,17-tribenzo-9,15-dioxa-cyclooctadeca-1,5-dien) were prepared by the reaction of the corresponding macrocycle with four different silver salts (AgX; X = ClO4, PF6, SbF6 and BF4). In all four compounds, silver ions are exo-coordinated by two neighboring ligand molecules in linear and T-shaped geometries. Such a coordination mode results in the formation of infinite 1D polymeric chains. Compounds AgLClO4 and AgLBF4 are isostructural, and polymeric chains display 1D zigzag topology. In AgLPF6 there are three symm
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8

Krivovichev, Sergey V., Taras L. Panikorovskii, Andrey A. Zolotarev, Vladimir N. Bocharov, Anatoly V. Kasatkin, and Radek Škoda. "Jahn-Teller Distortion and Cation Ordering: The Crystal Structure of Paratooite-(La), a Superstructure of Carbocernaite." Minerals 9, no. 6 (2019): 370. http://dx.doi.org/10.3390/min9060370.

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The crystal structure of paratooite-(La) has been solved using crystals from the type locality, Paratoo copper mine, near Yunta, Olary Province, South Australia, Australia. The mineral is orthorhombic, Pbam, a = 7.2250(3) Å, b = 12.7626(5) Å, c = 10.0559(4) Å, V = 927.25(6) Å3, and R1 = 0.063 for 1299 unique observed reflections. The crystal structure contains eight symmetrically independent cation sites. The La site, which accommodates rare earth elements (REEs), but also contains Sr and Ca, has a tenfold coordination by seven carbonate groups. The Ca, Na1, and Na2 sites are coordinated by ei
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9

Efremov, A., and V. Sharutin. "Synthesis and Structure of Tris(2-methoxyphenyl)antimony Bis(2,5-difluorobenzoate)." Bulletin of the South Ural State University series "Chemistry" 13, no. 4 (2021): 120–28. http://dx.doi.org/10.14529/chem210410.

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Tris(2-methoxyphenyl)antimony bis(2,5-difluorobenzoate) (1) has been obtained by the oxidative addition reaction between tris(2-methoxyphenyl)antimony, 2,5-difluorocarboxylic acid and tertiary butyl hydroperoxide in diethyl ether with the 72% yield. The compound has been identified by IR spectroscopy and X-ray diffraction analysis. According to the X-ray diffraction data, the crystal of compound 1 contains two types of crystallographically independent molecules a and b, the geometric parameters of which are slightly different. In molecules a and b the antimony atoms have a distorted trigonal-b
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Zinyakhina, Diana, Oleg Siidra, Anastasiya Zadoya, Sergey Krivovichev, and Rick Turner. "Crystal chemistry of layered Pb oxyhalides: crystal structure of Pb3[Pb20O10](GeO4)Cl10." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1120. http://dx.doi.org/10.1107/s2053273314088792.

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Pb oxyhalides are of interest due to their environmental and technological importance. They are also known as important constituents of oxidation zones of mineral deposits. Most Pb oxyhalides have layered α-PbO-derivative structures, which are related to the Aurivillius phases. The crystal structures of Pb-O related layered lead oxyhalides are based upon the O–Pb layers alternating with the X sheets of X– ions (X = Cl, Br, I). The PbO-derivative compounds may also incorporate a wide range of elements, including As, S, V, Mo, W, P, Si, etc., which results in interesting chemical and structural
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Book chapters on the topic "Symmetrically coordinated bond"

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Sørensen Overby, René, and Emil Søbjerg Falster. "The Human Body in Architectural Theory and Practice." In Studies in Health Technology and Informatics. IOS Press, 2024. https://doi.org/10.3233/shti240935.

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This article deals with representation of the human body in architecture. The human body as a statically balanced symmetrical figure is an antique, time-bound representation of the body and it is important to challenge that image in a modern and more nuanced understanding of being human. To identify some of architecture’s reproductions of the human body, we make some historical cuts and exemplify representations of the body in architectural theory. First, we briefly describe the origin of Homo Bene Figuratus (Vitruvius introducing the doctrine of the well-formed body) and the image of the body
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