由 [H24(Mo16O32)Co16(PO4)24(OH)4(C5H4N)2(H2O)6](4-) 轮和 4,4'-联吡啶连接体构建的新型有机-无机杂化层状钼（V）钴磷酸盐。

A new organic-inorganic hybrid layered molybdenum(V) cobalt phosphate constructed from [H24(Mo16O32)Co16(PO4)24(OH)4(C5H4N)2(H2O)6](4-) wheels and 4,4'-bipyridine linkers.

机构信息

Key Laboratory of Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin 150025, People's Republic of China.

出版信息

Inorg Chem. 2011 Mar 7;50(5):1862-7. doi: 10.1021/ic1022664. Epub 2011 Jan 18.

DOI:10.1021/ic1022664

PMID:21244095

Abstract

A new layered molybdenum cobalt phosphate, Na(2)[Co(H(2)O)(6)][(Mo(16)O(32))Co(16)(PO(4))(4) (HPO(4))(16)(H(2)PO(4))(4)(OH)(4)(C(10)H(8)N(2))(4)(C(5)H(4)N)(2)(H(2)O)(6)]·4H(2)O (1), has been hydrothermally synthesized and structurally characterized. 1 crystallizes in the monoclinic space group P2(1)/n with a = 15.6825(18) Å, b = 39.503(4) Å, c = 17.2763(17) Å, β = 93.791(2)°, V = 10679.4(18) Å(3), and Z = 2. A polyoxoanion of 1 exhibits an unusual organic-inorganic hybrid wheel-type cluster, in which two pyridine ligands link to the surface Co(II) atoms of a [H(24)(Mo(16)O(32))Co(16)(PO(4))(24)(OH)(4)(H(2)O)(6)] (namely, {Mo(16)Co(16)P(24)}) wheel via the Co-N bonds. Furthermore, each {Mo(16)Co(16)P(24)} wheel is connected to four adjacent wheels by four pairs of 4,4'-bipyridine linkers, forming a 2D layered network. The susceptibility measurement shows the existence of dominant antiferromagnetic interactions in 1.

摘要

一种新的层状钼钴磷酸盐，Na(2)[Co(H(2)O)(6)][(Mo(16)O(32))Co(16)(PO(4))(4) (HPO(4))(16)(H(2)PO(4))(4)(OH)(4)(C(10)H(8)N(2))(4)(C(5)H(4)N)(2)(H(2)O)(6)]·4H(2)O (1)，已经通过水热合成法合成并进行了结构表征。1 晶体属于单斜晶系 P2(1)/n 空间群，a = 15.6825(18) Å, b = 39.503(4) Å, c = 17.2763(17) Å, β = 93.791(2)°, V = 10679.4(18) Å(3), 和 Z = 2。1 的多氧阴离子表现出一种不寻常的有机-无机杂化轮型簇，其中两个吡啶配体通过 Co-N 键连接到[H(24)(Mo(16)O(32))Co(16)(PO(4))(24)(OH)(4)(H(2)O)(6)]（即，{Mo(16)Co(16)P(24)})轮的表面 Co(II)原子上。此外，每个{Mo(16)Co(16)P(24)}轮通过四对 4,4'-联吡啶连接体与四个相邻的轮连接，形成二维层状网络。磁化率测量表明 1 中存在主导的反铁磁相互作用。