共查询到20条相似文献,搜索用时 15 毫秒
1.
Ibrahim Abdul Razak S. Shanmuga Sundara Raj Hoong‐Kun Fun Fangfang Jian Fengli Bei Xujie Yang Lude Lu Xin Wang 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(6):666-667
In the title compound, [Au(C6H10NS2)(C18H15P)2], the Au atom is in a distorted tetrahedral environment, with the two P atoms of the triphenylphosphine ligands and the S atoms of the bidentate piperidinecarbodithioate ligand occupying the vertices. The piperidine ring adopts a chair conformation. 相似文献
2.
Ricardo Baggio Juan Carlos Muoz Mireille Perec 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m498-m500
The title compound, [Dy2(C2H3O2)6(H2O)4]·4H2O, crystallizes in the form of dimeric units related by an inversion centre. Each cation is nine‐coordinate, binding to two water molecules and three acetate groups, two of which are bidentate and the third tridentate. This last acetate group acts as a bridge between neighbouring metal atoms, leading to an intradimer Dy?Dy separation of 4.170 (1) Å. 相似文献
3.
Ivana Sloufova Miroslav Slouf 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):1312-1313
The title complex, [Ag(NO3)(C13H9N)2], is the first complex of silver and acridine to be reported. The silver coordination is distorted trigonal. The N—Ag—N angle involving the N atoms of the acridine ligands is 145.84 (6)°. The nitrate ion coordinates to silver as an asymmetrically chelating bidentate ligand. The crystal structure consists of neutral complex molecules linked into chains by means of attractive π–π interactions among the parallel acridine ligands. 相似文献
4.
Lesaw Siero Maria Bukowska‐Strzyewska 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):19-21
In the title dimeric complex, [Cu2(C4H4O4)2(C7H6N2S)4], which possesses a centre of symmetry, the Cu atoms are enclosed in a 14‐membered ring. They adopt a distorted square‐bipyramidal (4+2) coordination. The four closest donor atoms are two N atoms of 2‐aminobenzothiazole ligands and two O atoms of the succinate carboxylate groups. They form a square‐planar cis arrangement, with an average Cu—N distance of 2.003 (3) Å and Cu—O distances of 1.949 (3) and 1.965 (3) Å. Two longer Cu—O bonds of 2.709 (3) and 2.613 (3) Å involving the remaining O atoms of the carboxylate groups complete the sixfold coordination of the Cu atoms. The H atoms of each amino group of the 2‐aminobenzothiazole molecules form intra‐ and intermolecular N—H?O hydrogen bonds. A nearly perpendicular intermolecular C—H?Cg interaction (Cg is the centroid of the imidazole ring) is observed. The intramolecular Cu?Cu distance is 6.384 (2) Å. 相似文献
5.
Di Sun Na Zhang Rong‐Bin Huang Lan‐Sun Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(7):m174-m176
The asymmetric unit of the title compound, [Ag(NH3)2][Ag(C7H5N2O4)2], comprises half an [Ag(NH3)2]+ cation and half an [Ag(anbz)2]− anion (anbz is 2‐amino‐5‐nitrobenzoate). Both AgI ions are located on inversion centres. The cation has a linear coordination geometry with two symmetry‐related ammine ligands. The AgI cation in the anionic part shows a rare four‐coordinate planar geometry completed by two chelating symmetry‐related anbz ligands. Intra‐ and intermolecular N—H...O hydrogen bonds create a slightly undulating two‐dimensional supramolecular sheet. Adjacent sheets are only ca 3.3 Å apart. Ag...O, Ag...N and π–π stacking interactions consolidate the packing of the molecules in the solid state. 相似文献
6.
(O,O′)-Diorganodithiophosphatophenyltellurium(II)- and Tris[(O,O′)-diorganodithiophosphato]phenyltellurium(IV) Compounds; Crystal Structure of Tris[(O,O′)-diphenyldithiophosphato]phenyltellur(IV) The title compounds are available by reaction of trichlorophenyltellurium(IV) respectively iodophenyltellurium(II) with the sodium or ammonium salts of (O,O′)-diorganodithiophosphorus acids in various solvents. The resulting tellurium(IV) compounds have a pronounced tendency towards reductive elimination of bis[(O,O′)-diorganothiophosphoryl]disulfanes [S2P(OR)2]2 in solution. In contrast, the tellurium(II) compounds are stable, although they are disintegrated to diphenylditellane and [S2P(OR)2]2 on prolonged standing in chlorinated hydrocarbons. Crystals of tris[(O,O′)-diphenyldithiophosphato]phenyltellurium(IV) are monoclinic (space group P21/c) with the cell constants: a = 1 039.2(1), b = 1 037.9(3), c = 4 205.0(1) pm, β = 95.273(1)°, V = 4 516.42(9)X106 pm3, Z = 4. The compound appears to be monomeric in the solid state forming a distorted pentagonal bipyramid. The stereochemical influence of the lone pair of electrons causes the axial (i. e. C1? Te? S4) angle to be 156.6(1)° rather than the theoretical 180°. 相似文献
7.
Yanko Moreno Yimmy Salgado María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m487-m489
In the title monomer, [Cu(NO3)2(C18H12N2)], the six‐coordinated CuII atom lies on a twofold axis which bisects one of the ligands (a chelating biquinoline) and duplicates the remaining ligand, a chelating nitrate. The latter binds in a very asymmetric way, consistent with a Jahn–Teller distortion in the coordination polyhedron which, due to the triple chelation, is extremely distorted and difficult to describe in terms of any regular model. 相似文献
8.
Hubert Wadepohl Hans Pritzkow 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):383-384
The title compound, [Ag(CF3O3S)(C6H6)], has been synthesized and characterized by low‐temperature single‐crystal X‐ray diffraction. The complex is polymeric, with a network of trifluoromethanesulfonate anions bridging the silver cations. The terminal planar benzene ligand is asymmetrically η2‐coordinated to the Ag. 相似文献
9.
John F. Bower Simon A. Cotton John Fawcett David R. Russell 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(1):e8-e9
The title compound, [Nd(bipy‐N,N′)2(NO3–O,O′)3], is found to be isomorphous with the La and Lu analogues having three bidentate nitrate and two bipyridyl ligands giving a ten co‐ordinate environment. 相似文献
10.
Hiroyuki Hosomi Shigeru Ohba Yoshikatsu Ito 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(4):e123-e123
The title complex, [Zn(C9H7O2)2(H2O)2], shows a distorted octahedral coordination and has a crystallographic twofold rotation axis. Intermolecular O—H?O hydrogen bonding forms a two‐dimensional network in the ab plane. 相似文献
11.
Birinchi K. Das Rama K. Barman 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(9):1025-1026
The title compound, [Cu2(C2H3O2)4(C6H4N2)2], has the familiar lantern‐type structure that is characteristic of dimetal tetracarboxylates of copper and several other transition elements. The molecule lies about an inversion centre and the Cu atom is present in a distorted square‐pyramidal coordination environment, consisting of four O atoms in equatorial positions and the pyridyl‐N atoms of the two 4‐cyanopyridine ligands in axial positions. 相似文献
12.
Ru‐Guo Wang Qian Qiao Tian‐Di Tang 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(10):m388-m390
In the title coordination compound, [Cd(C14H8N2O4)(H2O)]n, the CdII cation and the coordinated water molecule lie on a twofold axis, whereas the ligand lies on an inversion center. The CdII center is five‐coordinated in a distorted square‐pyramidal geometry by four carboxylate O atoms from four different 4,4′‐diazenediyldibenzoate (ddb) anions and one water O atom. The three‐dimensional frameworks thus formed by the bridging ddb anions interpenetrate to generate a three‐dimensional PtS‐type network. Additionally, the coordination water molecule and the carboxylate O atom form a hydrogen‐bonding interaction, stabilizing the three‐dimensional framework structure. 相似文献
13.
Theivanayagam C. Deivaraj Jagadese J. Vittal 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):775-776
In the title compound, [Ni(C2H3OS)2(C18H15P)2], the Ni atom lies on an inversion centre and the triphenyl phosphine and thioacetate ligands are bonded to the central NiII atom in a trans fashion, with Ni—S = 2.2020 (8) and Ni—P = 2.2528 (8) Å, and angle S—Ni—P = 92.47 (3)°. 相似文献
14.
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
15.
Ana María Atria Mauricio Morel Maria Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(1):m17-m21
The structure of the ionic title compound, (C5H7N6)2[Nd2(C5O5)4(H2O)8], consists of anionic dimers built around an inversion centre and is made up of an NdIII cation, two croconate (croco) dianions and four water molecules (plus their inversion images), with two noncoordinated symmetry‐related 2,6‐diamino‐1H‐purin‐3‐ium (Hdap+) cations providing charge balance. Each NdIII atom is bound to nine O atoms from four water and three croco units. The coordination polyhedron has the form of a rather regular monocapped square antiprism. The croconate anions are regular and the Hdap+ cation presents a unique, thus far unreported, protonation state. The abundance of hydrogen‐bonding donors and acceptors gives rise to a complex packing scheme consisting of dimers interlinked along the three crystallographic directions and defining anionic `cages' where the unbound Hdap+ cations lodge, linking to the mainframe via (N—H)Hdap...Owater/croco and (O—H)water...NHdap interactions. 相似文献
16.
Mikhail S. Grigoriev Alexandre M. Fedosseev 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(6):m205-m207
The title compounds, Na[{AmO2}(C2H3O2)3], (I), and (CH6N3)[{AmO2}(C4H5O2)3], (II), contain complex anions in which AmO22+ cations are surrounded by three bidentate‐chelating carboxylate groups. The atoms of the AmO2 group and the Na atoms in (I) are situated on threefold axes. All the atoms in (II) occupy general positions. Both compounds are isomorphous with earlier studied analogous compounds of previous members of the actinide (An) series. 相似文献
17.
Takayoshi Suzuki Masahiro Ogita Sumio Kaizaki 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):532-533
The complex cation in the title compound, [Co(C5H7O2)2(C9H20N2)(C18H15P)]PF6·CH2Cl2, is the first example of a CoIII complex in which a trans configuration for the coordinated monodentate phosphine and amine ligands has been confirmed by X‐ray analysis. Owing to the large steric bulkiness of the axial PPh3 ligands influencing the interaction with the equatorial acetylacetonate ligands, the acetylacetonate planes bend away considerably from the PPh3 ligands. 相似文献
18.
Ingmar Krabbes Wilhelm Seichter Karsten Gloe 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):e178-e178
The title compound, [Ni{N(CH2CH2OH)3}2](CH3COO)2, was prepared and the structure determined. It is isostructural with the copper(II) analogue. 相似文献
19.
Cao‐Yuan Niu Ai‐Min Ning Lei Meng Chun‐Hong Kou Yong He 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(10):m407-m410
The structure of the title compound, poly[[[μ3‐N′‐(3‐cyanobenzylidene)nicotinohydrazide]silver(I)] hexafluoroarsenate], {[Ag(C14H10N4O)](AsF6)}n, at 173 K exhibits a novel stair‐like two‐dimensional layer and a three‐dimensional supramolecular framework through C—H...Ag hydrogen bonds. The AgI cation is coordinated by three N atoms and one O atom from N′‐(3‐cyanobenzylidene)nicotinohydrazide (L) ligands, resulting in a distorted tetrahedral coordination geometry. The organic ligand acts as a μ3‐bridging ligand through the pyridyl and carbonitrile N atoms and deviates from planarity in order to adapt to the coordination geometry. Two ligands bridge two AgI cations to construct a small 2+2 Ag2L2 ring. Four ligands bridge one AgI cation from each of four of these small rings to form a large grid. An interesting stair‐like two‐dimensional (3,6)‐net is formed through AgI metal centres acting as three‐connection nodes and through L molecules as tri‐linkage spacers. 相似文献
20.
Jaroslaw Chojnacki Anna Ciborska Wieslaw Wojnowski 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(6):m240-m242
This work presents an analysis of self‐assembly of a complex molecule from simpler ions, some of which are asymmetric, and is an example of a sodium silanethiolate. The tri‐tert‐butoxysilanethiolate anion has two helical conformers (P and M), so aggregation of silanethiolates can proceed with recognition of chirality. Alkali metal silanethiolates can form cyclic solvated oligomers (e.g. dimers) or complexes such as sodates with anions of general formula R2Na−. We note that all known sodates (and lithiates) contain both ligands of the same helicity in the anion, whereas in the dimers the metal atoms are coordinated by silanethiolate ligands of different helicity. The title compound, a new example of a sodate, [Na(C4H10O2)2][Na(C12H27O3SSi)2] or [Na{(tBuO)3SiS}2][Na(DME)2] (DME is 1,2‐dimethoxyethane), is built up of separate ion pairs with no significant interactions. The anion is formed from an Na atom O,S‐chelated by two silanethiolate ligands of the same helicity (both P or both M), while the cation contains an Na atom solvated by two DME molecules. Because the structure is centrosymmetric, equal numbers of both conformational enantiomers are present in the crystal lattice. 相似文献