共查询到20条相似文献,搜索用时 31 毫秒
1.
Andrej Pevec Alojz Demar Katsuyuki Aoki Iztok Turel 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m545-m547
In the structure of the title compound, {[Rh2(C2H3O2)4(C7H18N2O)]·0.5C4H8O}n or {[Rh2(O2CMe)4(Hbdmap)]·0.5C4H8O}n, where Hbdmap is 1,3‐bis(dimethylamino)propan‐2‐ol, each Hbdmap ligand is coordinated to two [Rh2(O2CMe)4] units by two N atoms, resulting in a polymeric chain structure. The observed coordination mode of the Hbdmap molecule is unprecedented. 相似文献
2.
M. John Plater Mark R. St J. Foreman R. Alan Howie 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m487-m489
The structure of the title compound, [Co4(C9H3O6)2(OH)2(C8H6N4)(H2O)2]·2H2O, contains three separate species, namely the μ5‐bridging C9H3O63? anion, the doubly chelating and therefore μ2‐bridging C8H6N4 ligand (bipyrimidine, BPM), and the dihydrated diaquadihydroxy tetranuclear cationic cluster, [Co4(OH?)2(H2O)2]6+·2H2O, which lies on a crystallographic centre of symmetry, as does the BPM ligand with, in this case, the centre of symmetry coincident with the midpoint of the C—C bond joining the six‐membered rings. Within the cation cluster, the Co atoms of one pair are five‐coordinate and those of the other six‐coordinate. 相似文献
3.
Rafal Kruszynski Tadeusz J. Bartczak 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m439-m441
The title compound, [Sn4(CH3)8(C13H8Cl2NO2)2(C2H5O)2O2], is a centrosymmetric dimer, with three linearly fused four‐membered Sn—O—Sn—O rings. The coordination polyhedron of the Sn atom bonded to the carboxylate can be described as trigonal–bipyramidal distorted toward square‐pyramidal. That of the second Sn atom is similar, but the distortion towards square‐pyramidal geometry is greater. The Sn—O and Sn—C distances are 2.020 (2)–2.226 (2) and 2.096 (4)–2.114 (4) Å, respectively. The benzene rings of the 2‐[(2,3‐dichlorophenyl)amino]benzoate ligand subtend an angle of 50.49 (17)°; the conformation of the ligand is stabilized by intramolecular N—H⋯Cl and N—H⋯O hydrogen bonds. The structure is assembled viaπ–π stacking interactions to form chains parallel to [10]. 相似文献
4.
Cassandra J. Martin David C. R. Hockless Max R. Taylor Lisandra L. Martin 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):e549-e549
The previously unknown title compound, tetra‐μ‐acetato‐1:2κ2O;1:2κ2O:O′;2:3κ2O;2:3κ2O:O′‐diaqua‐1κO,3κO‐bis(μ‐2‐{[N‐ethyl‐N‐(2‐hydroxy‐5‐methylbenzyl)amino]methyl}‐1‐methyl‐1H‐benzimidazole)‐1κ3N3,N,O:2κO;3κ3N3,N,O:2κO‐trinickel(II) tetrahydrate, [Ni3(C18H22N3O)2(C2H3O2)4(H2O)2]·4H2O, (I), is a centrosymmetric linear trinuclear nickel(II) complex, where the Ni atoms are in an octahedral coordination and the ligand heteroatoms act so as to model amino acid residues. 相似文献
5.
Li‐Li Kong Shan Gao Li‐Hua Huo Hui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m632-m634
The crystal structure of the title complex, {[Cu3(C2H3O2)2(OH)2(H2O)4](C10H6O6S2)}n, is built of infinite polymeric cationic {[Cu3(C2H3O2)2(H2O)4(OH)2]2+}n chains stretching along the a axis, with naphthalene‐1,5‐disulfonate (1,5‐nds) anions in between. One independent CuII cation and the 1,5‐nds anion occupy special positions on crystallographic inversion centres. Each CuII cation has an octahedral coordination environment formed by two carboxyl O atoms, two hydroxo O atoms and two water molecules. The carboxylate and hydroxo groups perform a bridging function, linking adjacent Cu atoms in the chain, with a shortest Cu⋯Cu distance of 2.990 (3) Å. The chains are further linked into a three‐dimensional supramolecular framework via hydrogen‐bonding interactions involving the sulfonate groups of the 1,5‐nds dianions. 相似文献
6.
Masood Parvez Saqib Ali Sajjad Ahmad Moazzam Hussain Bhatti Muhammad Mazhar 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(6):m334-m335
The crystal structure of catena‐poly[[tri‐n‐butyltin]‐μ‐3‐(1‐naphthylaminocarbonyl)acrylato‐κ2O1:O3], [Sn(C4H9)3(C14H10NO3)]n, is composed of polymeric chains wherein the metal center exhibits a distorted trigonal‐bipyramidal geometry, with three n‐butyl groups defining the trigonal plane [mean Sn—C 2.133 (7) Å] and the axial positions being occupied by the carboxylate O atoms of two different N‐(1‐naphthyl)maleamate ligands with inequivalent Sn—O distances [2.167 (4) and 2.457 (4) Å]. The N‐(1‐naphthyl)maleamate fragment forms an essentially planar seven‐membered ring involving an intramolecular N—H?O hydrogen bond. 相似文献
7.
Mrcia R. Siquiera Janaina T. Facco Ernesto S. Lang Fabiane Lorenzini Mara R. Rizzatti Javier Ellena Robert A. Burrow 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(4):m161-m164
The first structurally characterized alkali metal phosphonate, the title compound, [K2(C6H6O3P)2(C3H7NO)(H2O)]n, has a complex structure, with layers parallel to the crystallographic bc plane consisting of two crystallographically independent K atoms sandwiched between the three types of ligands present in the structure, viz. water molecules, dimethylformamide molecules and two crystallographically independent phenylphosphonate ligands. Six O atoms coordinate to one K atom and seven to the other. The interlayer distance is 15.327 (4) Å. The K—O distances are in the range 2.739 (2)–2.932 (2) Å for the seven‐coordinate K atom and 2.650 (2)–2.821 (2) Å for the six‐coordinate K atom. 相似文献
8.
M. Enriqueta Díaz de Vivar Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m30-m33
Two different zinc sulfite compounds have been prepared through the decomposition of pyrosulfite–dithionite ions in aqueous solution, viz. a dimeric complex, di‐μ‐sulfito‐κ3O,O′:O′′;κ3O:O′,O′′‐bis[(4,4′‐dimethyl‐2,2′‐bipyridine‐κ2N,N′)zinc(II)] dihydrate, [Zn2(SO3)2(C12H12N2)2]·2H2O, (I), which was solved and refined from a twinned sample, and an extended polymer, poly[[aqua(1,10‐phenanthroline‐κ2N,N′)zinc(II)]‐μ3‐sulfito‐κ2O:O′:O′′‐zinc(II)‐μ3‐sulfito‐κ3O:O:O′], [Zn2(SO3)2(C12H10N2)(H2O)]n, (II). In (I), the dinuclear ZnII complex has a center of symmetry. The cation is five‐coordinate in a square‐pyramidal arrangement, the anion fulfilling a bridging chelating role. Compound (II) comprises two different zinc units, one being five‐coordinate (square pyramidal) and the other four‐coordinate (trigonal pyramidal), and two independent sulfite groups with different binding modes to the cationic centers. 相似文献
9.
The title complex, [Ag4(C7H5O3)2(C8H6N2)4(C7H6O3)4], lies about an inversion centre and has a unique tetranuclear structure consisting of four AgI atoms bridged by four N atoms from two 1,8‐naphthyridine (napy) ligands to form an N:N′‐bridge and four O atoms from two salicylate (SA) ligands to form an O:O′‐bridge. The Ag atoms have distorted octahedral coordination geometry. The centrosymmetric Ag4 ring has Ag—Ag separations of 2.772 (2) and 3.127 (2) Å, and Ag—Ag—Ag angles of 107.70 (4) and 72.30 (4)°. All SA hydroxy groups take part in intramolecular O—H⋯O hydrogen bonding. In the crystal packing, the napy rings are oriented parallel and overlap one another. These π–π interactions, together with weak intermolecular C—H⋯O contacts, stabilize the crystal structure. 相似文献
10.
Zhan Shi Ying Hou Jia Hua Guanghua Li Shouhua Feng 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):m337-m338
The solvothermal reaction of zinc(II) acetate with 1,3,5‐benzenetricarboxylic acid and 4,4′‐bipyridine in 1‐butanol and acetic acid solution gives the title complex, [Zn3(C9H3O6)2(C10H8N2)(H2O)2]n. There are two different coordination environments for the Zn atom, namely ZnNO2(H2O) and ZnO4; in the latter case, the Zn atom lies on a twofold symmetry axis. Carboxylate‐bridged Zn3(O2C)6 clusters are connected through 1,3,5‐benzenetricarboxylate and 4,4′‐bipyridine ligands (which lie about inversion centers), yielding a three‐dimensional framework. 相似文献
11.
Kristin Kirschbaum Albert Fratini Shawn Swavey 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(5):m186-m187
The title compound, [Tb2(C24H12F9O6S3)2(C8H6N4)]·C4H8O2, has two terbium(III) centers bridged by the polyazine ligand 2,2′‐bipyrimidine (bpm), which is distorted from planarity by 7.0 (2)°. The terminal ligand 4,4,4‐trifluoro‐1‐(2‐thienyl)butane‐1,3‐dione (tta) is bidentate, coordinating through the two O atoms, while the bridging ligand is bis‐bidentate, coordinating through four equivalent N atoms. Both the complex and the ethyl acetate solvent molecules are disordered. The structure was refined as a non‐merohedral twin. 相似文献
12.
Jian‐Li Lin Yue‐Qing Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m501-m503
In the title compound, [Cu2(C6H8O4)(C6H9O4)2(C10H8N2)2(H2O)2]n, the square‐pyramidally coordinated Cu atoms are bridged by both 4,4‐bipyridine and adipate ligands into ladder‐like chains, with exo‐orientated 5‐carboxypentanoate ligands pendant from both side rails. Half of the adipate ligand is related to the other half by inversion symmetry. Interchain O—H⋯O hydrogen bonds from the aqua ligands to the carbonyl O atoms of the 5‐carboxypentanoate ligands are responsible for the formation of two‐dimensional grid‐like (4,4)‐networks, which complete a twofold interpenetration. 相似文献
13.
E. Yang Jian Zhang Yi‐Hang Wen Yu‐Biao Chen Yao Kang Zhao‐Ji Li Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):m280-m282
The hydrothermal reaction of an aqueous solution of Cu(CH3COO)2·H2O, 1,2,4,5‐benzenetetracarboxylic acid and 4,4′‐bipyridine gave rise to the interesting title three‐dimensional polymer {[Cu6(btec)3(4,4′‐bpy)3(H2O)2]·2H2O}n (btec is 1,2,4,5‐benzenetetracarboxylate, C10H2O84−, and 4,4′‐bpy is 4,4′‐bipyridine, C10H8N2), in which each btec ligand links six copper(II) cations into a lamellar [Cu6(btec)3(H2O)2]n subpolymer framework. There are two distinct diamine units and two distinct carboxylate units, with one of each lying across an inversion centre. 相似文献
14.
Zoran D. Tomi
eljko K. Jaimovi Vukadin M. Leovac Valeria I. eljevi 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):777-779
The title compound, bis(μ‐4‐acetyl‐3‐amino‐5‐methylpyrazolato‐N1:N2)bis[(acetato‐O)(4‐acetyl‐3‐amino‐5‐methylpyrazole‐N2)zinc(II)], [Zn2(C6H8N3O)2(C2H3O2)2(C6H9N3O)2], ex‐ists as a centrosymmetric binuclear molecule with two tetrahedrally coordinated Zn atoms bridged by two pyrazolate anions. The geometry of the terminal and bridging pyrazole ligands are slightly different as a consequence of their differing modes of coordination. 相似文献
15.
Alexander V. Virovets Sergey N. Konchenko 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e383-e384
The structure of the title compound, hexacarbonyl‐1κ3C,2κ3C‐[3(η5)‐cyclopentadienyl]bis(μ3‐selenido)diiron(II)cobalt(II),[CoFe2(μ3‐Se)2(C5H5)(CO)6], was redetermined at room temperature and the correct C2/c space group was assumed instead of the previously reported P space group [Mathur et al. (1995). Organometallics, 14 , 2115–2118]. Analysis of the literature data showed that the previously reported triclinic parameters correspond to a primitive subcell of the actual monoclinic C‐centred cell with cell dimensions close to those found by us. The title compound appeared to be isostructural with the sulfur–selenium analogue. 相似文献
16.
Nikolay N. Sveshnikov Michael H. Dickman Michael T. Pope 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(10):1193-1195
The title structure, [Rh2(C7H5O3)4(C2H6OS)2]·[Rh2(C4H7O2)4(C2H6OS)2]·2C2H6O, contains two discrete neutral Rh–Rh dimers cocrystallized as the ethanol disolvate. Each dimer is situated on an inversion center. The butyrate chain displays disorder in one C‐atom position. In each dimer, the dimethyl sulfoxide ligand (dmso) is bound via S, as expected. The ethanol is a hydrogen‐bond acceptor for one p‐hydroxybenzoate hydroxyl group and acts as a hydrogen‐bond donor to the dmso O atom of a neighboring p‐hydroxybenzoate dirhodium complex. A third hydrogen bond is formed from the other p‐hydroxybenzoate hydroxyl group to the dmso O atom of a butyrate–dirhodium complex. 相似文献
17.
Elbieta Jesionka Anna Ciborska Wieslaw Wojnowski Jaroslaw Chojnacki 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(7):m321-m323
The title compounds, μ‐(tri‐tert‐butoxysilanethiolato‐κ2S:S)‐bis[(tetrahydrofuran‐κO)lithium(I)], [Li2(C12H27O3SSi)2(C4H8O)2], (I), and catena‐poly[[bis(μ‐tri‐tert‐butoxysilanethiolato)‐1:2κ2S;1κS:2κS,O‐dilithium(I)]‐μ‐dimethoxyethane‐κ2O:O′], [Li2(C12H27O3SSi)2(C4H10O2)]n, (II), were obtained by the reaction of tri‐tert‐butoxysilanethiol with metallic lithium. The crude product, when recrystallized from tetrahydrofuran (THF) yields (I), and when recrystallized from 1,2‐dimethoxyethane (DME) gives (II). Compound (I) forms centrosymmetric dimers in the solid state with an Li2S2 central core, whereas (II) forms infinitely long chains, in which the centrosymmetric dimeric units are linked together by the bidentate DME ligand (also residing on an inversion centre), thus forming a coordination polymer. The formation of a one‐dimensional structure in (II) is a consequence of replacement of a monodentate THF solvent molecule with a bidentate DME molecule. 相似文献
18.
Nack‐Do Sung Ki‐Seob Yun Jin‐Gyu Kim Il‐Hwan Suh 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e370-e371
The title compound, μ‐aqua‐1:2κ2O‐pentaaqua‐1κ2O,2κ3O‐μ‐3,6‐bis(6‐methyl‐2‐pyridyl)pyridazine‐1κ2N1,N6:2κ2N2,N3‐chloro‐1κCl‐dinickel(II) trichloride trihydrate, [Ni2Cl(C16H14N4)(H2O)6]Cl3·3H2O, consists of two NiII atoms, a 3,6‐bis(6‐methyl‐2‐pyridyl)pyridazine molecule, four Cl atoms and nine water molecules. The two Ni atoms are octahedrally coordinated by N and Cl atoms, and by water molecules, and the three six‐membered rings, a pyridazine and two picolines, are planar to within 0.181 (3) Å. The crystal structure is stabilized by an intra‐ and intermolecular hydrogen‐bonding scheme involving water–water and water–chlorine interactions. 相似文献
19.
Jan Moncol Jaroslava Maroszova Milan Melník Marian Koman 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m114-m116
The title compound, [Cu3(C3H5O2)6(C6H7NO)4]n, is composed of polymeric chains formed by alternating centrosymmetric Cu2(μ‐CH3CH2CO2)4 and Cu(C3H5O2)2(C6H7NO)2 units. These elemental units are linked by two bridging 3‐pyridylmethanol (3PM) ligands. The Cu2(μ‐CH3CH2CO2)4 group presents a centrosymmetric tetrabridged structure with four syn–syn bridging propionate ligands to which two 3PM molecules are bonded (through N), occupying the apical positions of each square‐pyramidal polyhedron around the CuII ions. The remaining mononuclear group is centred around a third CuII ion, which lies on a symmetry centre and is bound to two monodentate propionate groups (through O), two monodentate 3PM molecules (through N) and two bridging 3PM molecules (through O), thus completing a square‐bipyramidal CuO2N2O2 coordination. 相似文献
20.
Seik Weng Ng S. Shanmuga Sundara Raj Hoong‐Kun Fun Ibrahim Abdul Razak James M. Hook 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):966-968
catena‐Poly[dicyclohexylammonium [tributyltin‐μ‐(4‐oxo‐4H‐pyran‐2,6‐dicarboxylato‐O2:O6)]], (C12H24N)[Sn(C7H2O6)(C4H9)3], consists of 4‐oxo‐4H‐pyran‐2,6‐dicarboxylato groups that axially link adjacent tributyltin units into a linear polyanionic chain. The ammonium counter‐ions surround the chain, and each cation forms a pair of hydrogen bonds to the double‐bond carbonyl O atoms of the same dianionic group. The chain propagates in a zigzag manner along the c axis of the monoclinic cell. In catena‐poly[methyl(phenyl)ammonium [tributyltin‐μ‐(pyridine‐2,6‐dicarboxylato‐O2:O6)]], (C7H10N)[Sn(C7H3NO4)(C4H9)3], the pyridine‐2,6‐dicarboxylato groups also link the tributyltin groups into a chain, but the hydrogen‐bonded chain propagates linearly on the ac face of the monoclinic cell. 相似文献