Spectral properties of some metal complexes derived from uracil-thiouracil and citrazinic acid compounds

被引：51
作者：
Masoud, Mamdouh S. [1 ]
Ibrahim, Amany A.
Khalil, Ekram A.
El-Marghany, Adel
机构：
[1] Univ Alexandria, Fac Sci, Dept Chem, Alexandria, Egypt
[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
[3] Suez Canal Univ, Dept Chem, Fac Educ, Suez, Egypt
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2007年 / 67卷 / 3-4期
关键词：
D O I：
10.1016/j.saa.2006.07.046
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The reaction of FeCl3 with uracil (H2L1), citrazinic acid (H2L6), 5-(phenylazo)citrazinic acid (H2L7), 5-(m-hydroxyphenylazo)citrazinic acid (H2L8) and 5-(m-nitrophenylazo)citrazinic acid (H2L9) leads to the formation of complexes with the empirical formula Fe(HL)(3).nH(2)O (n = 1-3). All of the prepared complexes have octahedral complexation geometry where the azo group is not the reactive site for complexation. Thiouracil (H2L2) and the 5-(substituted phenylazo)thiouracil (H2L3-H2L5) ligands are bidentates on complexation with Co(II), Ni(II) and Cu(II). The complexes have been characterized by elemental analyses, IR, electronic spectra, magnetic susceptibility, DTA, electron spin resonance (copper complexes) and Mossbauer spectra (iron complexes). The coordination bond lengths between the metal ion and the active centers for complexation were calculated. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：662 / 668
页数：7
相关论文
共 43 条
[1]  
ABOUSEKKINA MM, 1985, P INDIAN NATL SCI A, V51, P559
[2]  
ABOUSEKKINA MM, 1985, CHEM ABSTR 124377N, V102
[3]  
Ali A., 1974, COORDIN CHEM REV, V13, P102, DOI DOI 10.1016/S0010-8545(00)80253-2
[4]   ELECTRONIC ABSORPTION SPECTRA OF ACETYLACETONATO COMPLEXES .2. HUCKEL LCAO-MO CALCULATIONS FOR COMPLEXES WITH TRIVALENT TRANSITION METAL IONS [J].
BARNUM, DW .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1961, 22 (3-4) :183-191
[5]  
BAUEROVA J, 1960, COLLECT CZECH CHEM C, V25, P2906
[6]  
BAUEROVA J, 1961, CHEM ABSTR 4672A, V55
[7]  
COTTON FA, 1979, ADV INORGANIC CHEM
[8]   PI SYSTEM OF BINUCLEAR COPPER (2) AND CHROMIUM(2) ACETATES [J].
DUBICKI, L ;
MARTIN, RL .
INORGANIC CHEMISTRY, 1966, 5 (12) :2203-&
[9]  
HIROAKI K, 1991, CHEM ABSTR 111793C, V114
[10]  
JORGENSEN K, 1962, ABSORPTION SPECTRA C
12345