|Table of Contents|

Synthesis of New Dinuclear Complexes of a Macrocyclic Ligand with Multi-ligating Pendant-arms(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2002年06期
Page:
649-652
Research Field:
Publishing date:
2002-12-30

Info

Title:
Synthesis of New Dinuclear Complexes of a Macrocyclic Ligand with Multi-ligating Pendant-arms
Author(s):
LuoYuanxiang LuLude HanQiaofeng QianMing YangXujie WangXin
School of Chemical Engineering,NUST,Nanjing 210094
Keywords:
Schif f base 2- acetylpyridine macrocyclic complex
PACS:
O641.4
DOI:
-
Abstract:
A series of new dinuclear macrocyclic complexes have been synthesized by [ 2+ 2] Schif-f base condensat ion betw een sodium 2, 6- diformyl- 4- chlorphenolate w ith the reduced 1B1 Schif f base of t ris( 2- aminoethyl) amine and 2- acetylpyridine in the presence of M(ClO4) 2· 6H2O ( M = Mn 2+ , Cd 2+ , Zn 2+ , Cu 2+ ) . T hese complexes have been characterized by elemental analyses and inf rared spect ra. The result s show that the ex pected complexes are obtained. Both arms of these complexes are on the same side of the macrocy cle. T he macrocyclic ligand of fered dif ferent coordination environments. For the Mn 2+ complex, one Mn 2+ is located in a geometry of a distorted octahedron ( six-coordinated) , another Mn 2+ is located in a g eomet ry of a capped distorted octahedron ( seven-coordinated) . It is proposed that each Cd 2+ is located in a geomet ry of a distorted octahedron, w hile Zn 2+ and Cu 2+ are located in distortedoctahedral or square-pyramidal geomet ries.

References:

1 Wada H, Motoda K, Ohba M, et al. Di( phenoxo)- br idged dinuclear Mn2 ( II . II) and Mn2( I I. I II) complexes of macro cyclic lig ands: structur e, properties, and catalase- like function. Bull Chem Soc Jpn, 1995, 68: 1 105~ 1 114
2 Adams H, Bailey N A, Collinson S R, et al. The mononuclear barium and dinuclear copper( II ) complexes of a 24- membered bibracchial tetrakimine Shiff base macrocycle derived from tris( 2- aminoethyl) amine and 2, 5- diformylfuran. I norg Chim Acta, 1996, 246: 81~ 88
3 Qian M, Zeng Q, Gou S. Synthesis and character ization of a ser ies o f funct ional pendant- arm Shiff base macrocyclic complexes. Sy nth React Inorg Met-Org Chem, 2000, 30( 4) : 637~ 647
4 Luo Y X, Zhang J R, Lu L D, et al. Synthesis and cr ystal structur e of a new dinuclear manganese( II ) complex of a macr ocy clic ligand w ith mult-i ligating pendant- arms. T ransition Met Chem, 2002, 27( 5) : 469~ 472

Memo

Memo:
-
Last Update: 2002-12-30