共查询到20条相似文献,搜索用时 31 毫秒
1.
《Inorganic chemistry communications》1999,2(12):612-614
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.
Vitalii E. Konoplev Irina V. Pisareva Eugenii V. Vorontsov Fedor M. Dolgushin Andreas Franken John D. Kennedy Igor T. Chizhevsky 《Inorganic chemistry communications》2003,6(12):1454-1458
Reactions of [OsCl2(PPh3)3] 1 with the [NEt4]+ salts of the [6-Ph-nido-6-CB9H11]− anion 2 and the [arachno-6-CB9H14]− anion 3 each proceed selectively in methanol solution with the elimination of one boron-containing fragment from the starting cluster polyhedron, yielding together a short series of three novel 10-vertex hydridoosmamonocarbaboranes of isocloso {OsCB8} cluster geometry. 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.
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
5.
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
6.
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
7.
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
8.
Matthias Westerhausen Gerhard Sapelza Peter Mayer 《Inorganic chemistry communications》2006,9(12):1319-1321
The reaction of NaAs(H)SiiPr3 with ZnEt2 in the presence of additional triisopropylsilylarsane yields the heterobimetallic complex [(thf)Na]2 [(EtZn)6(AsSiiPr3)4] (1) in the shape of red prisms. The Na–As and Zn–As bond lengths show values of 301/309 pm and between 247 and 260 pm, respectively. 相似文献
9.
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
10.
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
11.
A classical ionic inorganic complex Na2[Cu(mnt)2] (mnt2− = maleonitriledithiolate = 1,2-dicyanoethylenedithiolate), that acts as a template in assembling neutral [Cu(salen)] (salen = bis(salicylidene)ethylenediamine) complexes forming a framework type arrangement, is accommodated in the channel formed in the crystal structure of a new type of host–guest compound [Cu(salen)]4 · Na2[Cu(mnt)2] (1). The non-covalent supramolecular interactions among [Cu(salen)] complexes and between [Cu(salen)] and [Cu(mnt)2]2− complexes in the crystal lattice of 1 result in weak antiferromagnetic coupling. 相似文献
12.
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
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.
Xiaoming Lu Bo Liu Sarula Jing Wang Chaohui Ye 《Inorganic chemistry communications》2005,8(12):1133-1136
Two super-molecular complexes [Na(DB18C6)(CH3CN)]3[α-AsM12O40] (M = Mo/W) were obtained by solvothermal reaction and characterized by IR,1H 13C and gUMBC NMR, X-ray. The result reveals that the complex consists of a [α-AsM12O40]3− (M = Mo/W) anion with α-Keggin structure, and three complex [Na (DB18C6)(CH3CN)]+ cations in which every sodium ion is located in the cavity of dibenzo-18-crown-6 with 6 Na–O bonds and coordinated with one of the terminal O atom of [α-AsM12O40]3− (M = Mo/W) and the N atom of CH3CN from two sides of the distorted DB18C6 plane, respectively. The three terminal O atoms linked with sodium ion are from a single M3O13 (M = Mo/W) triplet of the α-Keggin metalatoarsenate anion, and M–Ob (M = Mo/W) bonds exhibit alternating single–double bond character. 相似文献
15.
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
16.
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
17.
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
18.
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
19.
Grigory B. Andreev Nina A. Budantseva Ivan G. Tananaev Boris F. Myasoedov 《Inorganic chemistry communications》2008,11(7):802-804
The reaction of Np(V) methanesulfonate solution with imidazole led to the in situ formation of oxalic acid and the reduction of Np(V) to Np(IV). As a result, the novel organically templated organic polymer, (ImidazoleH)[Np(C2O4)(CH3SO3)3(H2O)2], was formed. The structure consists of infinite chains of [Np(C2O4)(CH3SO3)3(H2O)2]− and imidazolium cations. The crystal structure is confirmed by IR and UV–vis spectroscopic data. This complex is the first example of structurally characterized 1:1 An(IV) oxalate. 相似文献
20.
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