【摘 要】
：
The title compound (H3NCH2CH2NH3)4[(VO)6(B10O22)2](H3O)7 1 has been synthe- sized by the hydrothermal method and determined by X-ray crystallography.Crystallogr
【机 构】
：
Department of Chemistry,State Key Laboratory of Structural Chemistry,College of Chemical Science
论文部分内容阅读
The title compound (H3NCH2CH2NH3)4[(VO)6(B10O22)2](H3O)7 1 has been synthe- sized by the hydrothermal method and determined by X-ray crystallography.Crystallographic data: monoclinic, space group C2/c, a = 20.250(4), b = 13.448(3), c = 21.655(4) (A), β = 97.05(3)°, Mr = 851.74 (C4H30.5B10N4O28.5V3), V = 5852(2) (A)3, Z = 8, Dc = 1.933 g/cm3, μ = 1.057 mm-1, F(000) = 3436, R = 0.0500 and wR = 0.1442 for 4511 observed reflections with I > 2δ(I).The structure con- sists of [(VO)6(B10O22)2]15- cluster anions that have a central band of six trans-edge-sharing VO5 square pyramids capped by two [B10O22]14- polyborate ligands.Other characterizations are also describ- ed by elemental analysis, IR spectrum and thermal analysis.
其他文献
IntroductionMolybdenum(Ⅵ) is a biologically essential trace element and its role in an extremely wide variety of systems has been reported. Most common methods
AIM: To investigate the effect and mechanism of action of the nitric oxide synthase (NOS) inhibitor NG-nitro-L-arginine methyl ester (L-NAME) on invasion and me
Black hole mass is one of the fundamental physical parameters of active galactic nuclei (AGNs), for which many methods of estimation have been proposed.One set
We investigate the phenomena of symmetry breaking and phase transition in the ground state of BoseEinstein condensates (BECs) trapped in a double square well an
The effect of finite number and dimensionality has been discussed in this paper. The finite number effect has a negative correction to final temperature for 2D
采用MP2/6-31G(d,p)从头计算方法优化获得硝基胍两种异构体及过渡态的几何结构,在相同水平上计算了各驻点频率,并进行了IRC分析.利用过渡态理论,计算了在200～1773 K的H迁移异
The title compound, Ni(H2btc)2(hmta)2(H2O) (C30H35N8NiO13), has been syn- thesized by the reaction of Ni(CH3COO)2(H2O, 1,3,5-benzenetricarboxylate and hexame-th
A density functional theory is applied to calculating the local density profiles of colloids confined in a slit-like pore as well as the radial distribution fun
A new complex of N,N'-bis(p-nitrophenyl)-2,2'-(p-phenylene-dioxy) diacetamide DMF monohydrate, C25H25N5O9H2O (Mr = 557.52), has been synthesized and its structu
A catalytic reaction over a silver catalyst performed in an unregarded temperature region(473-873 K) with a long catalytic lifetime for the production of methyl