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1.
Juan Granifo María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m97-m100
The structure of the title compound, catena‐poly[[bis(1,1,1,5,5,5‐hexafluoropentane‐2,4‐dionato‐κ2O,O′)zinc(III)]‐μ‐4,4′‐bipyridine‐κ2N:N′], [Zn(C5HF6O2)2(C10H8N2)]n, consists of polymeric chains, running in two perpendicular directions, organized as planes normal to the tetragonal axis. The elemental unit of the chains is the zinc(II) coordination polyhedron bisected by a twofold symmetry axis, and thus only half of the unit is independent. The octahedral coordination geometry of the metal centre is composed of two oxygen‐chelating (symmetry‐related) hexafluoroacetylacetonate groups and two translationally related 4,4′‐bipyridine groups, which act as connecting agents in the polymer structure. The stabilization of this architecture of chains and planes is associated with a number of weak C—H⋯O and C—H⋯F hydrogen bonds. 相似文献
2.
Jaromír Marek Jn Van
o Oga vajlenov 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m509-m511
The title polymeric compound, catena‐poly[dipotassium [bis[μ‐N‐salicylidene‐β‐alaninato(2−)]‐κ4O,N,O′:O′′;κ4O′′:O,N,O′‐dicopper(II)]‐di‐μ‐isothiocyanato‐κ2N:S;κ2S:N], {K[Cu(NCS)(C10H9NO3)]}n, consists of [isothiocyanato(N‐salicylidene‐β‐alaninato)copper(II)]− anions connected through the two three‐atom thiocyanate (μ‐NCS) and the two anti,anti‐μ‐carboxylate bridges into infinite one‐dimensional polymeric anions, with coulombically interacting K+ counter‐ions with coordination number 7 constrained between the chains. The CuII atoms adopt a distorted tetragonal–bipyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging μ‐NCS ligand in the basal plane. The first axial position is occupied by a thiocyanate S atom of a symmetry‐related μ‐NCS ligand at an apical distance of 2.9770 (8) Å, and the second position is occupied by an O atom of a bridging carboxylate group from an adjacent coordination unit at a distance of 2.639 (2) Å. 相似文献
3.
M. Enriqueta Díaz de Vivar Sergio Baggio María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m123-m125
catena‐Poly[[[tetraaquazinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′] [[μ‐thiosulfato‐κ2O:S‐bis[(thiosulfato‐κS)zinc(II)]]‐di‐μ‐4,4′‐pyridine‐κ4N:N′] dihydrate], {[Zn(C10H8N2)(H2O)4][Zn2(S2O3)3(C10H8N2)2]·2H2O}n, is a polymeric zinc complex built up from thiosulfate‐containing anionic chains, where the Zn atom is tetrahedrally coordinated, and aqua‐containing cationic chains incorporating octahedrally coordinated Zn. In each type of chain, the 4,4′‐bipyridine units act as spacers, and the chains run along three non‐intersecting almost orthogonal directions in space. The profusion of hydrogen‐bond donors (all the H atoms of the water molecules) and acceptors (the thiosulfate O and S atoms) generates a very complex hydrogen‐bonding scheme. 相似文献
4.
Long Tang Ji-Jiang Wang Feng Fu Sheng-Wen Wang Qi-Rui Liu 《Acta Crystallographica. Section C, Structural Chemistry》2016,72(2):128-132
With regard to crystal engineering, building block or modular assembly methodologies have shown great success in the design and construction of metal–organic coordination polymers. The critical factor for the construction of coordination polymers is the rational choice of the organic building blocks and the metal centre. The reaction of Zn(OAc)2·2H2O (OAc is acetate) with 3‐nitrobenzoic acid (HNBA) and 4,4′‐bipyridine (4,4′‐bipy) under hydrothermal conditions produced a two‐dimensional zinc(II) supramolecular architecture, catena‐poly[[bis(3‐nitrobenzoato‐κ2O,O′)zinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′], [Zn(C7H4NO4)2(C10H8N2)]n or [Zn(NBA)2(4,4′‐bipy)]n, which was characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis and single‐crystal X‐ray diffraction analysis. The ZnII ions are connected by the 4,4′‐bipy ligands to form a one‐dimensional zigzag chain and the chains are decorated with anionic NBA ligands which interact further through aromatic π–π stacking interactions, expanding the structure into a threefold interpenetrated two‐dimensional supramolecular architecture. The solid‐state fluorescence analysis indicates a slight blue shift compared with pure 4,4′‐bipyridine and HNBA. 相似文献
5.
Sergio Baggio Ricardo Baggio M. Enriqueta Díaz de Vivar María Teresa Garland 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m153-m156
catena‐Poly[[[tetraaquanickel(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′] thiosulfate dihydrate], {[Ni(C10H8N2)(H2O)4]S2O3·2H2O}n, (I), and catena‐poly[[[tetraaquanickel(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′] sulfate methanol solvate monohydrate], {[Ni(C10H8N2)(H2O)4]SO4·CH4O·H2O}n, (II), are built up of {[Ni(4,4′‐bipy)(H2O)4]2+}n chains (4,4′‐bipy is 4,4′‐bipyridine) interwoven in an unusual P31 fashion. Voids are filled by the corresponding counter‐anions and solvate molecules, defining a complex three‐dimensional network surrounding them. In both structures, the cationic chains evolve around a set of twofold axes passing through the NiII ions and bisecting the aromatic amines through their N (and their opposite C) atoms. 相似文献
6.
Yu‐Ling Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m522-m524
In the title compound, {[Zn(C10H8N2)(H2O)4](C6H5O4S)2·3H2O}n, the Zn atom, the bipyridine ligand and one of water molecules are located on twofold rotation axes. The Zn atom is coordinated by four O atoms from four water molecules and two N atoms from two 4,4′‐bipyridine molecules in a distorted octahedral geometry. The Zn2+ ions are linked by the 4,4′‐bipyridine molecules to form a one‐dimensional straight chain propagating along the c axis. The 4‐hydroxybenzenesulfonate counter‐ions are bridged by the solvent water molecules through hydrogen bonds to generate a two‐dimensional layer featuring large pores. In the crystal packing, the intralayer pores form one‐dimensional channels along the c axis, in which the one‐dimensional [Zn(C10H8N2)(H2O)4]2+ chains are encapsulated. Electrostatic interactions between cations and anions and extensive hydrogen bonds result in a three‐dimensional supramolecular structure. 相似文献
7.
Zhong‐Lu You 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m295-m297
The two title complexes, catena‐poly[[{2,2′‐[1,3‐propanediylbis(nitrilomethylidyne)]diphenolato}cobalt(III)]‐μ‐azido], [Co(C17H16N2O2)(N3)]n, (I), and catena‐poly[[{2,2′‐[1,3‐propanediylbis(nitrilomethylidyne)]diphenolato}cobalt(III)]‐μ‐thiocyanato], [Co(C17H16N2O2)(NCS)]n, (II), are isomorphous polynuclear cobalt(III) compounds. In both structures, the CoIII atom is six‐coordinated in an octahedral configuration by two N atoms and two O atoms of one Schiff base, and two terminal N or S atoms from two bridging ligands. The [N,N′‐bis(salicylidene)propane‐1,3‐diaminato]cobalt(III) moieties are linked by the bridging ligands, viz. azide in (I) and thiocyanate in (II), giving zigzag polymeric chains with backbones of the type [–Co—N—N—N—Co]n in (I) or [–Co—N—C—S—Co]n in (II) running along the c axis. 相似文献
8.
Hyoung‐Sil Moon Chong‐Hyeak Kim Sueg‐Geun Lee 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):425-426
In the title compound, catena‐poly[[bis(aniline‐N)cadmium(II)]‐di‐μ‐thiocyanato‐S:N;N:S], [Cd(SCN)2(C6H7N)2], the CdII atom lies on an inversion centre and is in a distorted octahedral geometry. The coordination sphere contains two thiocyanate (SCN) S atoms, two isothiocyanate (NCS) N atoms and two aniline N atoms. The six‐coordinated Cd atoms run parallel to the b axis and are doubly bridged with neighbouring Cd atoms by SCN and NCS ligands. Thus, this complex has a one‐dimensional coordination polymeric chain structure in which the aniline ligand is in the trans conformation. 相似文献
9.
Yi‐Long Wang Zhu‐Jia Shao Shao‐Song Qian 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(5):471-475
3,4‐Dimethoxy‐trans‐cinnamic acid (Dmca) reacts with zinc sulfate in the presence of 4‐(1H‐pyrazol‐3‐yl)pyridine (L1) or 4,4′‐bipyridine (L2) under hydrothermal conditions to afford two mixed‐ligand coordination complexes, namely tetrakis(μ‐3,4‐dimethoxy‐trans‐cinnamato‐κ2O:O′)bis[[4‐(1H‐pyrazol‐3‐yl)pyridine]zinc(II)] heptahydrate, [Zn2(C11H11O4)4(C8H7N3)2]·7H2O or [Zn2(Dmca)4(L1)2]·7H2O, (I), and catena‐poly[[bis(3,4‐dimethoxy‐trans‐cinnamato‐κO)zinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′], [Zn(C11H11O4)2(C10H8N2)]n or [Zn(Dmca)2(L2)]n, (II). The ZnII centres in the two compounds display different coordination polyhedra. In complex (I), the ZnII cation is five‐coordinated with a pseudo‐square‐pyramidal geometry, while in complex (II) the ZnII cation sits on a twofold axis and adopts a distorted tetrahedral coordination environment. Complex (I) features a centrosymmetric binuclear paddle‐wheel‐like structure, while complex (II) shows a chain structure. This study emphasizes the significant effect of the coordination mode of both carboxylate‐group and N‐donor coligands on the formation of complex structures. 相似文献
10.
Chun‐Xiang Wang Chen‐Xia Du Zhi‐Feng Li 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):m488-m490
In the title compound, [Zn(C17H10N5O)2(H2O)2]·4H2O, cyclic water hexamers forming one‐dimensional metal–water chains are observed. The water clusters are trapped by the co‐operative association of coordination interactions and hydrogen bonds. The ZnII ion resides on a centre of symmetry and is in an octahedral coordination environment comprising two O atoms and two N atoms from two 2′‐(4,5‐diazafluoren‐9‐ylidene)picolinohydrazidate ligands and two water molecules. 相似文献
11.
The dipyridyl‐type building blocks 4‐amino‐3,5‐bis(pyridin‐3‐yl)‐1,2,4‐triazole (3‐bpt) and 4,4′‐bipyridine (bpy) have been used to assemble with ZnII in the presence of trithiocyanuric acid (ttcH3) to afford two coordination compounds, namely bis[4‐amino‐3,5‐bis(pyridin‐3‐yl)‐1,2,4‐triazole‐κN3]bis(trithiocyanurato‐κ2N,S)zinc(II), [Zn(C3H2N3S3)2(C12H10N6)2]·2H2O, (1), and catena‐poly[[[bis(trithiocyanurato‐κ2N,S)zinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′] 4,4′‐bipyridine monosolvate], {[Zn2(C3H2N3S3)4(C10H8N2)3]·C10H8N2}n, (2). Single‐crystal X‐ray analysis indicates that complex (1) is a mononuclear structure, while complex (2) presents a one‐dimensional chain coordination motif. In both complexes, the central ZnII cation adopts an octahedral geometry, coordinated by four N‐ and two S‐donor atoms. Notably, trithiocyanurate (ttcH2−) adopts the same bidentate chelating coordination mode in each complex and exists in the thione tautomeric form. The 3‐bpt co‐ligand in (1) adopts a monodentate coordination mode and serves as a terminal pendant ligand, whereas the 4,4′‐bipyridine (bpy) ligand in (2) adopts a bidentate–bridging coordination mode. The different coordination characters of the different N‐donor auxiliary ligands lead to structural diversity for complexes (1) and (2). Further analysis indicates that the resultant three‐dimensional supramolecular networks for (1) and (2) arise through intermolecular N—H...S and N—H...N hydrogen bonds. Both complexes have been further characterized by FT–IR spectroscopy and elemental analyses. 相似文献
12.
De‐Yun Ma Guo‐Hua Deng 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(8):m271-m273
The title compound, catena‐poly[[tris(μ‐4‐methylbenzoato)‐κ2O:O;κ4O:O′‐(4‐methylbenzoato‐κ2O,O′)dizinc(II)]‐μ‐4,4′‐bipyridine‐κ2N:N′], [Zn2(C8H7O2)4(C10H8N2)]n, is a novel coordination polymer. The asymmetric unit contains two unique ZnII ions, four 4‐methylbenzoate ligands and one 4,4′‐bipyridine (4,4′‐bpy) ligand, all in general positions. The four 4‐methylbenzoate ligands link the two ZnII centres to form a dinuclear unit, with a Zn...Zn separation of 3.188 (2) Å, which can be regarded as a supramolecular secondary building unit (SBU). These SBUs are further bridged by 4,4′‐bpy ligands, forming a novel one‐dimensional infinite chain. There are π–π stacking interactions between the benzene rings of the 4‐methylbenzoate ligands and the pyridyl rings of the 4,4′‐bpy ligands, leading to the formation of a corrugated layer. These layers are further assembled via C—H...O hydrogen bonds into a three‐dimensional supramolecular network structure. Coordination polymers such as the title compound are of interest for their potential applications as functional materials. 相似文献
13.
Wen‐Tong Chen Xi‐Rui Zeng Xiao‐Niu Fang Xin‐Fa Li Han‐Mao Kuang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m571-m573
The title compound, (C10H10N2)[CdBr4], was synthesized via a hydrothermal reaction. Its structure features discrete 4,4′‐bipyridinium cations and tetrahedral [CdBr4]2− anions linked into ion pairs by single N—H⋯Br hydrogen bonds. Photoluminescent investigation reveals that the title compound displays a strong emission in the blue region, which may originate from π→π* charge‐transfer interactions of the 4,4′‐bipyridinium cations. 相似文献
14.
In the title compound, catena‐poly[[[N,N′‐bis(pyridin‐3‐ylmethyl)‐[1,1′‐biphenyl]‐4,4′‐dicarboxamide]chloridozinc(II)]‐μ‐[1,1′‐biphenyl]‐4,4′‐dicarboxylato‐[[N,N′‐bis(pyridin‐3‐ylmethyl)‐[1,1′‐biphenyl]‐4,4′‐dicarboxamide]chloridozinc(II)]‐μ‐[N,N′‐bis(pyridin‐3‐ylmethyl)‐[1,1′‐biphenyl]‐4,4′‐dicarboxamide]], [Zn2(C14H8O4)Cl2(C26H22N4O2)3]n, the ZnII centre is four‐coordinate and approximately tetrahedral, bonding to one carboxylate O atom from a bidentate bridging dianionic [1,1′‐biphenyl]‐4,4′‐dicarboxylate ligand, to two pyridine N atoms from two N,N′‐bis(pyridin‐3‐ylmethyl)‐[1,1′‐biphenyl]‐4,4′‐dicarboxamide ligands and to one chloride ligand. The pyridyl ligands exhibit bidentate bridging and monodentate terminal coordination modes. The bidentate bridging pyridyl ligand and the bridging [1,1′‐biphenyl]‐4,4′‐dicarboxylate ligand both lie on special positions, with inversion centres at the mid‐points of their central C—C bonds. These bridging groups link the ZnII centres into a one‐dimensional tape structure that propagates along the crystallographic b direction. The tapes are interlinked into a two‐dimensional layer in the ab plane through N—H...O hydrogen bonds between the monodentate ligands. In addition, the thermal stability and solid‐state photoluminescence properties of the title compound are reported. 相似文献
15.
Jonathan D. Woodward Rnal Backov Khalil A. Abboud Daniel R. Talham 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1027-1029
The one‐dimensional chain catena‐poly[[aqua(2,2′:6′,2′′‐terpyridyl‐κ3N)nickel(II)]‐μ‐cyano‐κ2N:C‐[bis(cyano‐κC)nickelate(II)]‐μ‐cyano‐κ2C:N], [Ni(terpy)(H2O)]‐trans‐[Ni‐μ‐(CN)2‐(CN)2]n or [Ni2(CN)4(C15H11N3)(H2O)], consists of infinite linear chains along the crystallographic [10] direction. The chains are composed of two distinct types of nickel ions, paramagnetic octahedral [Ni(terpy)(H2O)]2+ cations (with twofold crystallographic symmetry) and diamagnetic planar [Ni(CN)4]2? anions (with the Ni atom on an inversion center). The [Ni(CN)4]2? units act as bidentate ligands bridging through two trans cyano groups thus giving rise to a new example of a trans–trans chain among planar tetracyanonickelate complexes. The coordination geometry of the planar nickel unit is typical of slightly distorted octahedral nickel(II) complexes, but for the [Ni(CN)4]2? units, the geometry deviates from a planar configuration due to steric interactions with the terpyridine ligands. 相似文献
16.
Brian W. Skelton A. Fiona Waters Claire R. Whitaker Allan H. White 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m435-m438
Both of the title compounds, catena‐poly[[[tetraaquamagnesium(I)]‐μ‐4,4′‐bipyridine‐κ2N:N′] diiodide bis(4,4′‐bipyridine) solvate], {[Mg(C10H8N2)(H2O)4]I2·2C10H8N2}n, (I), and catena‐poly[[[μ‐4,4′‐bipyridine‐bis[diiodobis(propan‐1‐ol)strontium(I)]]‐di‐μ‐4,4′‐bipyridine‐κ4N:N′] bis(4,4′‐bipyridine) solvate], {[Sr2I4(C10H8N2)3(C3H8O)4]·2C10H8N2}n, (II), are one‐dimensional polymers which are single‐ and double‐stranded, respectively, the metal atoms being linked by the 4,4′‐bipyridine moieties. The Mg complex, (I), is [cis‐{(H2O)4Mg(N‐4,4′‐bipyridine‐N′)(2/2)}](∞|∞)I2·4,4′‐bipyridine and Mg has a six‐coordinate quasi‐octahedral coordination environment. The Sr complex, (II), is isomorphous with its previously defined Ba counterpart [Kepert, Waters & White (1996). Aust. J. Chem. 49 , 117–135], being [(propan‐1‐ol)2I2Sr(N‐4,4′‐bipyridine‐N′)(3/2)](∞|∞)·4,4′‐bipyridine, with the I atoms trans‐axial in a seven‐coordinate pentagonal–bipyramidal Sr environment. 相似文献
17.
Viktor A. Tafeenko Vladimir V. Chernyshev 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m298-m300
The coordination of the 3‐cyano‐4‐dicyanomethylene‐5‐oxo‐4,5‐dihydro‐1H‐pyrrol‐2‐olate anion to ZnII, the apical sites of which are occupied by two water molecules, results in the formation of two‐dimensional layers of the title coordination polymer, {[Zn(C8HN4O2)2(H2O)2]·2H2O}n, in which the ZnII cations lie on inversion centres in space group C2/c, with water ligands in the apical sites of octahedral geometry. Hydrogen bonds between coordinated and lattice water molecules, and π–π stacking interactions between the anions link adjacent layers into a continuous framework. 相似文献
18.
Duyen N. K. Pham Mrittika Roy Ava Kreider-Mueller James A. Golen David R. Manke 《Acta Crystallographica. Section C, Structural Chemistry》2019,75(5):568-574
Seven crystal structures of five first‐row (Fe, Co, Ni, Cu, and Zn) and one second‐row (Cd) transition metal–4‐picoline (pic)–sulfate complexes of the form [M(pic)x]SO4 are reported. These complexes are catena‐poly[[tetrakis(4‐methylpyridine‐κN)metal(II)]‐μ‐sulfato‐κ2O:O′], [M(SO4)(C6H7N)4]n, where the metal/M is iron, cobalt, nickel, and cadmium, di‐μ‐sulfato‐κ4O:O‐bis[tris(4‐methylpyridine‐κN)copper(II)], [Cu2(SO4)2(C6H7N)6], catena‐poly[[bis(4‐methylpyridine‐κN)zinc(II)]‐μ‐sulfato‐κ2O:O′], [Zn(SO4)(C6H7N)2]n, and catena‐poly[[tris(4‐methylpyridine‐κN)zinc(II)]‐μ‐sulfato‐κ2O:O′], [Zn(SO4)(C6H7N)3]n. The Fe, Co, Ni, and Cd compounds are isomorphous, displaying polymeric crystal structures with infinite chains of MII ions adopting an octahedral N4O2 coordination environment that involves four picoline ligands and two bridging sulfate anions. The Cu compound features a dimeric crystal structure, with the CuII ions possessing square‐pyramidal N3O2 coordination environments that contain three picoline ligands and two bridging sulfate anions. Zinc crystallizes in two forms, one exhibiting a polymeric crystal structure with infinite chains of ZnII ions adopting a tetrahedral N2O2 coordination containing two picoline ligands and two bridging sulfate anions, and the other exhibiting a polymeric crystal structure with infinite chains of ZnII ions adopting a trigonal bipyramidal N3O2 coordination containing three picoline ligands and two bridging sulfate anions. The structures are compared with the analogous pyridine complexes, and the observed coordination environments are examined in relation to crystal field theory. 相似文献
19.
Jn Van
o Oga vajlenov Jaromír Marek 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):m190-m192
The title compound, K2[Cu2(NCS)2(C12H13NO3)2], consists of two K+ cations and (N‐salicylidene‐d ‐valinato)copper(II) and (N‐salicylidene‐l ‐valinato)copper(II) coordination units connected through three‐atom thiocyanate (μ‐NCS) bridges into a centrosymmetric dianion. The CuII atom adopts a square‐pyramidal coordination, with three donor atoms of the tridentate Schiff base and one N atom of the bridging ligand (μ‐NCS) in the basal plane. The axial position is occupied by the thiocyanate S atom of a symmetry‐related ligand at an apical distance of 2.9332 (10) Å. Coulombic interactions between six‐coordinated K+ ions and the heteroatoms of neighbouring dimeric anions leads to the formation of one‐dimensional chains of molecules parallel to [010]. The superposition of the normals of the pyramidal base planes in a direction close to [001] indicates possible π–π interactions between neighbouring units. 相似文献
20.
Christian Nther Inke Jeß 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m190-m192
The CuI cations in the title compound, [Cu(NCS)(C6H6N2O)2]n, are coordinated by N atoms from each of two mirror‐related nicotinamide ligands, as well as by one N atom of one thiocyanate ligand and one S atom of a symmetry‐related thiocyanate ligand, within a slightly distorted tetrahedron. The CuI cations and the thiocyanate anions are located on a crystallographic mirror plane and the nicotinamide ligands occupy general positions. The CuI cations are connected by the thiocyanate anions to form chains in the direction of the crystallographic a axis. These chains are connected by hydrogen bonds between the amide H atoms and the O atoms of adjacent nicotinamide ligands, to give a three‐dimensional structure. 相似文献