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1.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Ning‐Yu Xiao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m111-m113
In the crystal structure of the title complex, [Ni2(C10H20N4O2)(C12H12N2)2](ClO4)2 or [Ni(dmaeoxd)Ni(dmbp)2](ClO4)2 {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide and dmbp is 4,4′‐dimethyl‐2,2′‐bipyridine}, the deprotonated dmaeoxd2− ligand is in a cis conformation and bridges two NiII atoms, one of which is located in a slightly distorted square‐planar environment, while the other is in an irregular octahedral environment. The cation is located on a twofold symmetry axis running through both Ni atoms. The dmaeoxd2− ligands interact with each other via C—H⋯O hydrogen bonds and π–π interactions, which results in an extended chain along the c axis. 相似文献
2.
Pascale Lemoine Karima Bendada Bernard Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m489-m491
The asymmetric unit of the title compound, [Zn(C7H5O3)2(C10H8N2)], contains one monomeric zinc complex. The Zn atom is coordinated to one 2,2′‐bipyridyl ligand via both N atoms and to two salicylate anions (Hsal−) in a bidentate chelating manner involving carboxylate O‐atom coordination. The complex exhibits a distorted octahedral geometry about the ZnII atom, with the `apical' positions occupied by one of the two N atoms of the bipyridyl ligand and an O atom from one Hsal− ligand; the Zn atom is 0.168 (1) Å out of the `basal' plane. Two intramolecular six‐membered hydrogen‐bonded rings are present, generated from interactions between the carboxyl and hydroxyl groups of the salicylate ligands. The crystal packing is governed by weak C—H⋯O and C—H⋯π interactions. 相似文献
3.
Hong‐Chang Liang Marcel M. Hetu Kraig A. Wheeler Lev N. Zakharov Arnold L. Rheingold 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m519-m521
In the title compound, [Zn(C2H3N)(C16H21N3O)](ClO4)2·H2O, the ZnII ion is coordinated by two pyridyl N atoms, one amine N atom, and an ethanol O atom from the N,N′,N′′,O‐tetradentate 2‐[bis(2‐pyridylethyl)amino]ethanol donor ligand. The fifth coordination site is filled by an acetonitrile N atom, and there is one solvent water molecule in the asymmetric unit. The 2+ charge of the cationic portion of the complex is balanced by two perchlorate counter‐anions. 相似文献
4.
Jussara Lopes de Miranda Judith Felcman James L. Wardell Janet M. S. Skakle 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(9):m471-m474
The title compound, [Cu2(NO3)2(C3H7N3O2)4], forms a centrosymmetric dimer, with the two Cu2+ ions separated by 2.6525 (6) Å. The asymmetric unit contains a Cu atom coordinated to two guanidinoacetic acid ligands (via one carboxylate O atom from each ligand) and to a nitrate group. The inversion centre in P generates the entire molecule, in which each Cu atom is coordinated to four carboxylate and to one nitrate O atom; ignoring the Cu—Cu separation, the geometry about each Cu atom is square pyramidal. The amino acid ligand is in the zwitterionic form. Strong N—H?O hydrogen bonds lead to a three‐dimensional supramolecular structure, in which the N?O distances are in the range 2.931 (4)–3.278 (3) Å, with N—H?O angles ranging from 128 to 170°. 相似文献
5.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Shu‐Fang Zhang Zhi‐Wei Yin 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(3):m108-m110
In the crystal structure of the title complex, [Cu2(C10H20N4O2)(C10H8N2)2](ClO4)2, the deprotonated dmaeoxd2− ligand {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide} occupies an inversion centre at the mid‐point of the central C—C bond and is thus in a trans conformation. The two CuII atoms are located in slightly distorted square‐based pyramidal environments. The binuclear units interact with each other viaπ–π interactions to form a one‐dimensional chain extending in the c direction. 相似文献
6.
Seung‐Chul Choi Jaejung Ko Sang Ook Kang Won‐Sik Han Ki‐Young Choi 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m85-m87
The copper(II) ion in the syn–anti carboxylate‐bridged one‐dimensional zigzag chain title complex, {[Cu(C16H18N3O2)]ClO4}n, exhibits a distorted trigonal–bipyramidal environment. Two N atoms and one carboxylate O atom of the ligand form the basal plane, while the axial positions are filled by an N atom of the ligand and one O atom belonging to the carboxylate group of an adjacent molecule. The crystal packing is enhanced by C—H⋯O(perchlorate) hydrogen bonds. 相似文献
7.
Guang‐Fei Liu Lin‐Lin Li Yong Zhang Jian‐Ping Lang Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(1):m1-m3
The title compound, [Cu(ClO4)2(C4H9N3O2)2][Cu(C4H9N3O2)2(CH4O)2](ClO4)2·2CH3OH, comprises two independent CuII species lying on different inversion sites. In the Cu complexes, a distorted octahedral geometry arises (from basic square‐planar N4 coordination) from the weak coordination of two perchlorate ions (as Cu—O) in one species and two methanol molecules in the other (also as Cu—O). Interactions between the O atoms of the perchlorate anions or methanol groups and the imide or amine NH groups afford an extensive intermolecular hydrogen‐bonding network. 相似文献
8.
Xi‐Teng Yue Jin‐Ju Nie Yan‐Tuan Li Zhi‐Yong Wu Cui‐Wei Yan 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(4):m115-m118
The title complex, [CuNi(C13H16N3O3)(C10H8N2)2(H2O)]ClO4, has a cis‐oxamide‐bridged heterobinuclear cation, with a Cu...Ni separation of 5.3297 (6) Å, counterbalanced by a disordered perchlorate anion. The CuII and NiII cations are located in square‐pyramidal and octahedral coordination environments, respectively. The complex molecules are assembled into a three‐dimensional supramolecular structure through hydrogen bonds and π–π stacking interactions. The influence of the two types of metal cation on the supramolecular structure is discussed. 相似文献
9.
Aarne Pajunen Fernando Cmara Jose M. Dominques‐Vera Enrique Colacio 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(2):e49-e50
In the title compound, [Cu(C10H18N5)(CH4O)]ClO4, four N atoms from the deprotonated ligand derived from bis(3‐aminopropyl)amine and 2‐imidazolecarboxaldehyde are coordinated to the Cu atom. The four N atoms occupy equatorial positions with Cu—N bond distances ranging from 1.998 (2) to 2.046 (3) Å. The methanol O atom occupies one axial position with a Cu—O bond distance of 2.295 (2) Å. 相似文献
10.
Fang‐Fang Jian Yu‐Ping Tong Hai‐Lian Xiao Ping‐Ping Sun Pu‐Su Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m348-m349
The title compound, [Co2(H2PO4)4(C10H8N2)2], is dinuclear, centred on a symmetry centre of the P space group. Each Co atom has a distorted square‐pyramidal coordination involving two N atoms from a bipyridine molecule and three O atoms from two bridging and one terminal dihydrogen orthophosphate anion. The molecular structure and packing are stabilized by intermolecular hydrogen‐bond interactions. 相似文献
11.
Cheng‐Bing Ma Chang‐Neng Chen Qiu‐Tian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(10):m469-m472
In the title compound, [Mn(C7H3NO4)(C3H4N2)(C12H8N2)(H2O)], the MnII centre is surrounded by one bidentate phenanthroline ligand [Mn—N = 2.383 (3) and 2.421 (3) Å], one tridentate dipicolinate ligand [Mn—N = 2.300 (3) Å, and Mn—O = 2.300 (2) and 2.357 (2) Å], one monodentate imidazole ligand [Mn—N = 2.238 (3) Å] and one water molecule [Mn—O = 2.157 (3) Å]. It displays a distorted pentagonal‐bipyramidal geometry, with neighbouring angles within the equatorial plane ranging from 68.05 (9) to 77.48 (10)°. Intermolecular O—H...O hydrogen bonds link the molecules into infinite chains. The chains are crosslinked by hydrogen bonds involving the carboxyl O atoms of the dipicolinate ligand and the protonated imidazole N atom, leading to an infinite two‐dimensional network sheet packing mode. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework, stabilized by these intermolecular hydrogen‐bonding interactions and π–π stacking interactions involving the phenanthroline rings. 相似文献
12.
Mitsuharu Fujita Yoshitaro Miyashita Nagina Amir Yasunori Yamada Kiyoshi Fujisawa Ken‐ichi Okamoto 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m435-m436
In the complex cation of the title compound, [Ir2(C2H6NS)2(C4H12N2S2)2]Br4·2H2O, which was obtained by rearrangement of [Re{Ir(aet)3}2]3+ (aet is 2‐aminoethanethiolate) in an aqueous solution, two approximately octahedral fac(S)‐[Ir(NH2CH2CH2S)3] units are linked by two coordinated disulfide bonds. The complex cation has a twofold axis, and the two non‐bridging thiolate S atoms in the complex are located on opposite sides of the two disulfide bonds. Considering the absolute configurations of the two octahedral units (Δ and Λ) and the four asymmetric disulfide S atoms (R and S), the complex consists of the ΔRRΔRR and ΛSSΛSS isomers, which combine to form the racemic compound. 相似文献
13.
Tetrakis(2,2′‐bipyridine‐κ2N,N′)tetrakis(μ‐salicylato‐κ3O,O′:O′′)‐quadro‐tetrazinc(II) decahydrate
Yue Wang Mamiko Odoko Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m479-m481
The title compound, [Zn4(C7H4O3)4(C10H8N2)4]·10H2O, crystallizes as a centrosymmetric tetranuclear cyclic complex containing four ZnII atoms bridged by four carboxylate groups from salicylate ligands, with a syn–anti configuration. Each ZnII atom has a distorted trigonal–bipyramidal coordination geometry, formed by two N atoms of a 2,2′‐bipyridine ligand and three O atoms from two salicylate ligands. The complex is stabilized by intramolecular π–π interactions between pairs of bipyridine rings and a 16‐membered gear‐wheel‐shaped cyclic framework. The hydrogen‐bonding network is formed via the water molecules. 相似文献
14.
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
15.
Tadeusz Lis Petra Stachov Duan Valigura Jan Moncol 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m375-m377
The title compound {systematic name: tetrakis(μ‐3,5‐dinitrobenzoato‐κ2O:O′)bis[(3,7‐dihydro‐1,3,7‐trimethyl‐1H‐purine‐2,6‐dione‐κO2)copper(II)]}, [Cu2(C7H3N2O6)4(C8H10N4O2)2], consists of paddle‐wheel dimeric tetrakis(μ‐3,5‐dinitrobenzoato‐κ2O:O′)dicopper(II) units with O‐coordinated caffeine molecules in both apical positions. The entire dimeric molecule lies on a tetragonal inversion axis, and thus one nitrobenzoate anion with one Cu atom in a special position belong to the independent part of the molecule. The caffeine ligand bonded to the Cu atom is disordered on a local twofold non‐crystallographic axis coincident with the axis. A π–π stacking interaction is observed between the caffeine rings and adjacent symmetry‐related benzene rings of the 3,5‐dinitrobenzoate anions. 相似文献
16.
Jaromír Marek Zdenk Trvní
ek Pavel Kopel 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m429-m431
The title compound, [Mn(C12H8N2)2(H2O)2](C4H4O4S)·[Mn(C4H4O4S)(C12H8N2)2]·13H2O, contains one dianion of thiodiglycolic acid (tdga2−) and two independent manganese(II) moieties, viz. [Mn(phen)2(H2O)2]2+ and [Mn(tdga)(phen)2], where phen is 1,10‐phenanthroline. The MnII atoms are octahedrally coordinated by four N atoms of two bidentate phen ligands [Mn—N = 2.240 (2)–2.3222 (19) Å] and either two water O atoms or two tdga carboxyl O atoms [Mn—O = 2.1214 (17)–2.1512 (17) Å]. The tdga ligand chelates as an O,O′‐bidentate ligand, forming an eight‐membered ring with one Mn atom. The free tdga2− dianion is hydrogen bonded to an [Mn(phen)2(H2O)2]2+ ion, with O⋯O distances of 2.606 (2) and 2.649 (2) Å. The crystal structure is further stabilized by an extensive network of hydrogen bonds involving 13 water molecules. 相似文献
17.
En Tang Yu‐Mei Dai Shen Lin 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m433-m434
The title compound, [Zn(C8H5O4)2(C10H8N2)2], was obtained by the hydrothermal reaction of ZnSO4·7H2O with phthalic acid (H2pht) and 4,4′‐bipyridine (4,4′‐bipy). Crystallographic analysis shows that it has a one‐dimensional double‐chain structure via hydrogen‐bonding interactions. Each ZnII atom, adopting a distorted tetrahedral geometry, is coordinated by two N atoms from two 4,4′‐bipy ligands, with Zn—N distances of 2.054 (4) and 2.104 (4) Å, and by two O atoms from symmetry‐related Hpht− ligands, with Zn—O distances of 1.921 (4) and 2.019 (4) Å. 相似文献
18.
Yun‐Ling Gao Xiao‐Jun Peng Shi‐Guo Sun Chang‐Neng Chen 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m13-m15
The novel μ‐oxo‐diiron complex [Fe2O(BPHPA)2](ClO4)4 [BPHPA is (6‐hydroxymethyl‐2‐pyridylmethyl)bis(2‐pyridylmethyl)amine, C19H20N4O], contains a binuclear centrosymmetric [Fe2O(BPHPA)2]4+ cation (the bridging O atom lies on an inversion centre) and four perchlorate anions. Each iron ion is coordinated by four N atoms [Fe—N = 2.117 (5)–2.196 (5) Å] and one O atom [Fe—O = 2.052 (5) Å] from a BPHPA ligand, and by one bridging oxo atom [Fe—O = 1.7896 (9) Å], forming a distorted octahedron. There are hydrogen bonds between the hydroxy group and perchlorate O atoms [O—H·O = 2.654 (7) Å]. 相似文献
19.
Cheng‐Bing Ma Ming‐Qiang Hu Chun‐Xia Zhang Feng Chen Chang‐Neng Chen Qiu‐Tian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):m288-m290
The title complex, [Mn(C8H4O4)(C10H8N2)(H2O)]n, takes the form of a zigzag chain, with the terephthalate dianion (tp) acting as a tridentate ligand. The MnII center is surrounded by two tp ligands, one water molecule and one 2,2′‐bipyridine (bipy) ligand and exhibits a severely distorted octahedral coordination environment, with cis angles ranging from 57.31 (8) to 123.97 (11)°. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework stabilized by hydrogen‐bonding interactions involving the coordinated water molecule and the carboxy O atoms of the tp ligands, and by π–π stacking interactions involving the bipy rings and the benzene ring of the tp ligand. 相似文献
20.
Yong‐Min Lee Sung Kwon Kang Young‐Inn Kim Sung‐Nak Choi 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(8):m453-m454
In the title compound, dibromo[(6R,7S,8S,14S)‐1,3,4,7,7a,8,9,10,11,13,14,14a‐dodecahydro‐7,14‐methano‐2H,6H‐dipyrido[1,2‐a:1′,2′‐e][1,5]diazocine‐κ2N,N′]zinc(II), [ZnBr2(C15H26N2)], the chiral nitrogen‐chelating alkaloid (?)‐l ‐sparteine acts as a bidentate ligand, with two bromide ligands occupying the remaining coordination sites, producing a slightly distorted tetrahedral structure. The dihedral angle between the N—Zn—N and Br—Zn—Br planes is 82.4 (1)°. The distortion of the tetrahedral coordination is demonstrated by the fact that the midpoint of the N?N line does not lie in the Br—Zn—Br plane, but is tilted towards one of the N atoms by 0.164 Å. Similarly, the midpoint of the Br?Br line is tilted towards one of the Br atoms by 0.117 Å. 相似文献