共查询到20条相似文献,搜索用时 50 毫秒
1.
Michael A. Beswick Sara J. Kidd Michael A. Paver Paul R. Raithby Alexander Steiner Dominic S. Wright 《Inorganic chemistry communications》1999,2(12):2819
Attempts to prepare the [As(NtBu)3]3− trianion by the reaction of As(NMe2)3 with [tBuNHLi]n (1:3 monomer equiv.) proved unsuccessful. However, if the reaction is carried out with an excess of tBuNH2 (3 equiv.) the target complex [{As(NtBu)3}2Li6] (1) is obtained. This is the first example of a complex containing an [As(NR)3]3− trianion. 相似文献
2.
Nirmal Kumar Karan Samiran Mitra Georgina Rosair David J. Jenkins K. M. Abdul Malik 《Inorganic chemistry communications》2001,4(12)
A new alternating double aquo-bridged and single cyano-bridged polymeric complex {[Ba2(phen)4(H2O)6Fe(CN)6]·Cl·2(phen)·3H2O}n (1) (phen = 1,10-phenanthroline) has been synthesized and structurally characterized. In the crystal structure the two centrosymmetric [Ba2(phen)4(H2O)6] units are bridged through two trans CN groups of [Fe(CN)6]3− ion, which results in the formation of a zig-zag polymeric chain. In each [Ba2(phen)4(H2O)6] unit, the two Ba centers are joined by double aquo bridges. Both the Ba atoms are 9-coordinated with distorted mono-capped square antiprismatic geometry. An elaborate hydrogen bonding system holds the parallel polymeric chains together. 相似文献
3.
Yong Li Zhao-Xia Zhang Pegn-Zhi Hong Zhan-Xia Wua Ke-Chang Li 《Inorganic chemistry communications》2008,11(7):761-764
One new metal-organic polymer formulated as [Fe2(μ10-btc)0.5(μ2-ox)0.5(μ2-O)1.5]n 1 (btc = 1,2,4,5-benzenetetracarboxylate, pyramellitate; ox = oxalate) has been synthesized by low-temperature solid-state reaction and characterized by single-crystal X-ray diffraction, elemental analyses, TGA, IR spectra and UV–visible spectra. Complex 1 presents the first 3D coordination network structure constructed by bridging btc, ox and O mixed ligands. In 1, carboxyl groups of btc are all deprotonated and they have a new type of μ10-btc coordination mode. The third-order non-linear optical (NLO) properties of the title compound 1 were also investigated and they exhibit the reverse saturable absorption and self-defocusing performance with modulus of the hyperpolarizability (γ) 5.98 × 10−30 esu for 1 in a 7.45 × 10−4 mol dm−3 DMF solution. 相似文献
4.
Raj Pal Sharma Rajni Sharma Ajay Kumar Paloth Venugopalan Paula Brando Vitor Felix 《Inorganic chemistry communications》2009,12(10):945-947
A new cobalt(III) complex salt, [Co(NH3)6][HgBr5](1) was crystallized from a solution of hexaamminecobalt(III)bromide and potassium tetrabromomercurate(II) in aqueous medium in 1:1 molar ratio. This complex salt has been characterized by elemental analyses, spectroscopic techniques (e.g. UV/Visible, IR), solubility product and conductance measurements. The complex salt crystallizes in Orthorhombic crystal system with space group Pnma. Single crystal X-ray structure determination revealed the presence of discrete ions: [Co(NH3)6]3+ cation and a new anion [HgBr5]3−. This is the first structural report of a complex salt containing this new anion. The structure consists of stacks of cations and anions demonstrating supramolecular arrangements through N–HBr hydrogen-bond interactions. The crystal lattice is stabilized by these non-covalent interactions besides electrostatic interaction. 相似文献
5.
Geng-Geng Luo Rong-Bin Huang Li-Rong Lin Lan-Sun Zheng 《Inorganic chemistry communications》2008,11(7):818-821
Pd(PPh3)2Cl2 reacts with PdCl2 and 1,3-bis(diphenylphosphine)propane (dppp) in ethanol–DMF–pyridine mixed solvent to yield a novel palladium(I) compound [Pd3(μ3-Cl)2(dppp)3][Pd2(μ2-Cl)3(PPh3)2](PPh3)2. It features an isolated structure based on [Pd3(μ3-Cl)2(dppp)3]+ cations having triangulo-palladium clusters and [Pd2(μ2-Cl)3(PPh3)2]− anions in which the coordination environment of palladium is an unusual tetrahedral geometry. Its photoluminescence is measured. 相似文献
6.
A novel supramolecular assembly consisting of sodium-dibenzo-18-crown-6(DB18C6) complex cation [Na(C20H24O6)(CH3CN)2]2+ and isopolyanion [Mo6O19]2− has been demonstrated in the 3D structure of [Na(C20H24O6)(CH3CN)2]2[Mo6O19] · 4CH3CN (1). Weak intermolecular forces (C–HO hydrogen bonds) between isopolyanion and crown ether play a significant role in the construction of supramolecular framework in the crystal structure of 1. Compound 1 has been characterized in the solid state by single crystal X-ray diffraction, IR, CHN analysis, and TGA. 相似文献
7.
The novel six-coordinated gadolinium(III) complex of formula [Gd2(dca)4(OH)2(NITpPy)4] (1) (dca = dicyanamide, NITpPy = 4-pyridyl-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-oxy-3-oxide) has been prepared and characterized by X-ray crystallography. Compound 1 is a dimer structure made up of double μ1,5-dca-bridged gadolinium(III) ions and one terminal dca ligand; variable-temperature magnetic susceptibility measurements reveal the occurrence of a significant ferromagnetic interaction directly spin polarization through the NITpPy–Gd(III)–NITpPy pathway with J = 11.56 cm−1. 相似文献
8.
Nadezhda A. Bokach Marina R. Tyan Grigory G. Aleksandrov Matti Haukka Vadim Yu. Kukushkin 《Inorganic chemistry communications》2009,12(10):1061-1063
The dinuclear platinum(III) complex [Pt2Cl2{μ2-N(H)C(Et)N(H)}4] (2) has been prepared by heating cis-[Pt(NH3)2{NHC(NH2)Et}2](Cl)2 (cis-1) under aeration conditions in an EtOH/H2O mixture at 70 °C for 2 d and it was characterized by elemental analyses (C, H, N), ESI+-MS, IR, 1H and 13C NMR spectroscopies and also by X-ray diffraction. Complex 2 represents the second PtIII dimer stabilized by the amidinate ligand ever known and it has a lantern-type structure with four amidinate ligands bridging two PtIII centers with Pt–Pt distance of 2.4809(2) Å. 相似文献
9.
Padavattan Govindaswamy Georg Süss-Fink Bruno Therrien 《Inorganic chemistry communications》2007,10(12):1489-1492
Two cationic pentamethylcyclopentadienyl metal-based hexanuclear complexes with trigonal prismatic architecture have been synthesised through a two-step strategy. The dinuclear complexes [M(η5- C5Me5)(μ-Cl)Cl]2 (M = rhodium and iridium) react with 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine (tpt) in dichloromethane to give the trinuclear complexes [Rh3(η5-C5Me5)3(μ3-tpt)Cl6] (1) and [Ir3(η5-C5Me5)3(μ3-tpt)Cl6] (2), respectively. Addition of silver triflate to 1 and 2 in dichloromethane connects two identical triangular panels to form the hexanuclear metallo-prismatic cations [Rh6(η5-C5Me5)6(μ3-tpt)2(μ-Cl)6]6+ (3) and [Ir6(η5-C5Me5)6(μ3-tpt)2(μ-Cl)6]6+ (4), respectively. Cations 3 and 4 have been isolated as their triflate salts and characterised by 1H NMR, IR and UV/visible spectroscopy. 相似文献
10.
The open framework compound of [Gd2(BDA)3(DMF)2(H2O)4] · 2DMF (1), prepared by heating GdCl3 with 2,2′-bipyridyl-4,4′-dicarboxylatic acid (BDA) in mixed solvent, is constructed from BDA linking up polymeric [GdO5(DMF)(H2O)2]n tethers. The 1D channels are filled with coordinated and uncoordinated DMF molecules hydrogen bonding to terminal aqua ligands. The study of the temperature dependent magnetic susceptibilities revealed that there are ferromagnetic interactions between intra-chain GdIII atoms and weak antiferromagnetic interactions between inter-chain GdIII atoms. 相似文献
11.
Hai-jun Pang Jing-quan Sha Jun Peng Ai-xiang Tian Chun-jing Zhang Peng-peng Zhang Yuan Chen Min Zhu Yong-hui Wang 《Inorganic chemistry communications》2009,12(8):735-738
A new compound, {[Cu2(DF)2H2O]2SiMo12O40} (1) (DF = 4,5-diazafluoren-9-one), has been hydrothermally synthesized and characterized by routine methods and single crystal X-ray diffraction. In 1, all the DF only adopt the unusual bidentate coordination mode for the first time coordinating to Cu atoms to form copper-dimers which link [SiMo12O40]4− clusters obtaining an intertwined double chain. Furthermore, the luminescent and electrochemical properties of the title compound have been studied. 相似文献
12.
Fabio Lorenzini Eoghain OHara Shimeng Qian Fabio Marchetti James M. Birbeck Anthony Haynes Alexander J. Blake Graham C. Saunders Andrew C. Marr 《Inorganic chemistry communications》2009,12(10):1071-1073
Rh2(cod)2(μ2-dppm)(μ2-Cl)]BF4 (1) rearranges under carbon monoxide to give [Rh3(μ2-dppm)2(μ2-CO)3(K1-CO)3]BF4 (2). Complex 2 has been structurally characterized by single crystal X-ray crystallography. The hydroformylation activities of 1 and 2 were compared for substrates styrene and 1-hexene and the activity of 2 found to be unexpectedly high. 相似文献
13.
Jingping Wang Guoqian Zhang Pengtao Ma Jingyang Niu 《Inorganic chemistry communications》2008,11(7):825-828
The first example of disubstituted Lindqvist-type polyoxomolybdate {[V(2,2-bipy)2]2(4,4-bipy)[Te2Mo4O19]} has been synthesized hydrothermally and characterized by elemental analyses, XPS, IR, TG-DTA and X-ray single crystal diffraction. The structural analysis shows that the neutral molecular unit [V(2,2-bipy)2]2[Te2Mo4O19] consists of a novel Lindqvist-type polyanion [Te2Mo4O19]6− supporting two vanadyl moieties [V(2,2-bipy)2]3+, and such neutral molecules are joined together by π − π stacking interactions between the pyridine groups to form a two-dimensional grid-like network with non-coordinating “guest” 4,4-bipys encapsulated. 相似文献
14.
Habibar Chowdhury Sk Hafijur Rahaman Rajarshi Ghosh Sajal K. Sarkar Montse Corbella Barindra K. Ghosh 《Inorganic chemistry communications》2006,9(12):1276-1280
A new dinuclear complex [Cu2(OAc)2(OH)(dpa)2] PF6 · H2O (1) is prepared and structurally and magneto-structurally characterized. The monocationic core contains one acetate in familiar bidentate η1:η1:μ2-bridge and another in the rare monoatomic bridge along with one hydroxo intermediary. 1 packs through N–H…O and O–H…O hydrogen bonds and π…π interaction resulting a 3D supramolecular continuum and displays high-energy intraligand 1(π − π*) fluorescence and intraligand 3(π − π*) phosphorescence in glassy solution. 相似文献
15.
Qi Wang Xiao-li Yu Wan-sheng You Yi Zhao Cui-Ying Huang Zhen-gang Sun 《Inorganic chemistry communications》2007,10(12):1465-1468
Two Cu(II) complexes supported by tetravanadates, [{Cu(dpa)2}2V4O12] (1 and 2), have been synthesized under hydrothermal reactions. Structural analysis indicates that complexes 1 and 2 are isomeric and consist of a cyclic [V4O12]4- anion bridged to two [Cu(dpa)2]2+ moieties. Close inspection of complexes 1 and 2 reveals that the [V4O12]4- anions adopt chair-like and boat-like configurations respectively, and are coordinated to each Cu(II) ions through a single terminal oxygen atom of two cross vanadium sites. Moreover, Complexes 1 and 2 exhibit trans- and cis-configurations, respectively. 相似文献
16.
Lili Chen Lili Li Bin Liu Ganglin Xue Huaiming Hu Feng Fu Jiwu Wang 《Inorganic chemistry communications》2009,12(10):1035-1037
A new zirconium-containing sandwich-type dimer based on trivacant α- and β-[GeW9O34]10− units, [Zr3O(OH)2(α-GeW9O34)(β-GeW9O34)]12−, was synthesized and characterized by IR spectroscopy, UV electronic spectroscopy and single crystal X-ray diffraction. The central bent of the polyanion contains three oxygen atoms alternating with the three zirconium atoms. The polyanion represents a rare example of the sandwich POMs containing two different isomer subunits. 相似文献
17.
Hexanuclear 4d–4f heterometallic complexes, [Ln2Ag4(ina)8(H2O)10][NO3] 2 · 4H2O [Ln = Sm (1), Eu (2), Dy (3) and Hina = isonicotinic acid], have been synthesized by the hydrothermal reaction of lanthanide oxides, AgI, and isonicotinic acid at a suitable temperature. Single-crystal X-ray diffraction studies indicate that these 4d–4f complexes consist of extended 1D zigzag chains structure built upon [Sm2Ag4(ina)8(H2O)10] subunits connected by Ag–Ag interactions. Furthermore, the photoluminescent properties of the complex 2 were studied. 相似文献
18.
Sandra Bolao Jorge Bravo Jesús Castro María del Carmen Marín Soledad García-Fontn 《Inorganic chemistry communications》2009,12(9):916-918
The dicarbonylhydride complex cis,mer-[ReH(CO)2{PPh(OMe)2}3] (1) was serendipitously obtained when, in an attempt to replace a CO ligand by the phosphonite ligand PPh(OMe)2 in [ReH(CO)3(L)] (L = PPh2OCH2CH2OPPh2), this complex was treated with PPh(OMe)2 under UV irradiation. The complex 1 was characterized by IR, 1H and 31P{1H} NMR spectroscopy and by crystal structure determination. The spectroscopic features are consequent with the cis,mer configuration showed by the X-ray crystallographic analysis of the complex. The environment of the metal centre is a distorted octahedron. 相似文献
19.
Wen-Juan Ji Quan-Guo Zhai Man-Cheng Hu Shu-Ni Li Yu-Cheng Jiang Yan Wang 《Inorganic chemistry communications》2008,11(12):1455-1458
A novel metal–organic coordination polymer, namely, {[K2(H2O)6][Cd3(1,2,4,5-BTC)2]}n (1) (1,2,4,5-BTC = 1,2,4,5-benzenetetracarboxylate), was synthesized in an ionothermal reaction by using an ionic liquid 1-ethyl-3-methylimidazolium bromide ([EMIM]Br) as solvent. Complex 1 features a novel 3-D (4, 8)-connected porous anionic architecture constructed by linking trinuclear Cd subunits with 1,2,4,5-BTC4− ligands, which are further filled with 1-D [K2(H2O)6] cationic chains. 相似文献
20.
Reaction of CrCl3(THF)3 with K[HB(pz)3] in THF leads to the formation of the complex K[CrCl3{HB(pz)3}] (1). The salt metathesis of complex 1 with [Ph4P]Br in CH2Cl2 yields the complex [Ph4P][CrCl3{HB(pz)3}](2). The structure of complex 2 · CHCl3 has been determined by single crystal X-ray diffraction. In the anion the metal centre shows a distorted octahedral geometry with the hydrotris(1-pyrazolyl)borate bonded as N,N′,N″-donor tripod ligand and three chloride atoms completing the co-ordination sphere. Complex 2 in the presence of MAO leads to the formation of an active catalyst for the polymerization of ethylene. 相似文献