The structure of hydrated lead(II) dimethylacetate, [Pb-6(O2CCH(CH3)(2))(12)]4H(2)O: A hexanuclear carboxylate

被引:21
作者
Fallon, GD
Spiccia, L
West, BO
Zhang, Q
机构
[1] MONASH UNIV,CTR CHEM SYNTHESIS,CLAYTON,VIC 3168,AUSTRALIA
[2] MONASH UNIV,DEPT CHEM,CLAYTON,VIC 3168,AUSTRALIA
关键词
lead(II); dimethylacetate; carboxylate; structure; Pb-207; NMR;
D O I
10.1016/0277-5387(96)00275-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Hydrated lead(II) dimethylacetate forms hexanuclear units [Pb-6(O-2-CCH(CH3)(2))(12)]14H(2)O in the solid state consisting of a ring of four lead atoms linked by oxygen atoms belonging to chelated carboxylates, with two further lead atoms linked to the ring by bridging carboxylate oxygens. Water molecules are coordinated to four lead atoms. There are pairs of Pb atoms with 7, 6 and 5-fold coordination in the molecular unit. The hexanuclear molecularity is retained in solution but Pb-207 NMR measurements indicate different 5-coordinate sites are formed. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:19 / 23
页数:5
相关论文
共 18 条
[11]  
Ibers J.A., 1974, INT TABLES XRAY CRYS, VIV
[12]  
Mann, 1978, NMR PERIODIC TABLE
[13]   SYNTHESIS, CHARACTERIZATION AND REACTIVITY OF LEAD(II) ALKOXIDES AND OXOALKOXIDES - CONDENSATION TO OXOALKOXIDES AS A GENERAL STRUCTURAL FEATURE [J].
PAPIERNIK, R ;
HUBERTPFALZGRAF, LG ;
MASSIANI, MC .
POLYHEDRON, 1991, 10 (14) :1657-1662
[14]   CRYSTAL-STRUCTURE OF LEAD ACETATE TRIHYDRATE [J].
RAJARAM, RK ;
RAO, JKM .
ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1982, 160 (3-4) :225-233
[15]   REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES [J].
SHANNON, RD .
ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1) :751-767
[16]  
SHELDRICK GM, 1990, SHELXTL PLUS REVISIO
[17]  
Yanovsky A.I., 1982, KOORD KHIMIIA, V8, P153
[18]  
ZHANG Q., UNPUB