NEW OLIGOMERIC MIXED-LIGAND BARIUM CHELATES CONTAINING ADDITIONAL ANIONIC LIGANDS

被引：22
作者：
DROZDOV, AA
TROYANOV, SI
PISAREVSKY, AP
STRUCHKOV, YT
机构：
[1] MOSCOW MV LOMONOSOV STATE UNIV,DEPT CHEM,LENIN HILLS,119899 MOSCOW,RUSSIA
[2] AN NESMEYANOV ORGANOELEMENT CPDS INST,117813 MOSCOW,RUSSIA
来源：
POLYHEDRON | 1994年 / 13卷 / 09期
关键词：
D O I：
10.1016/S0277-5387(00)81713-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The mixed ligand complex [Ba5(thd)9Cl(H2O)7] (1) was obtained by recrystallization in the system BaCl2-Nathd-H2O-EtOH. Using Hthd (2,2,6,6-tetramethylheptanedione-3,5), containing a small amount of pivalic acid (Hpiv) and a neutral Lewis base (pyridine), two complexes [Ba6(thd)4(piv)8(py)4](py)2 (II) and Na2Ba7(thd)2PiV)14(py)4(H2O)2 (III) have been isolated. An X-ray study revealed that I consists of the pentanuclear species, barium atoms forming a distorted square pyramid, with the chloride being incorporated. In structures II and III, Ba3 triangles are linked into a hexanuclear unit (II) or into an infinite chain (III) through the bridging piv ligands.
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页码：1445 / 1452
页数：8
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