Synthesis and characterization of mono and polymeric cyclopalladated compounds: Crystal and molecular structure of [{Pd(dmba)(ONO2)}2(μ-pz)] • H2O (pz = pyrazine)

被引:8
作者
Ananias, Sandra R. [1 ,2 ,3 ]
Ferreira, Janaina G. [1 ,3 ]
Mauro, Antonio E. [3 ]
Netto, Adelino V. G. [3 ]
Klein, Stanlei I. [3 ]
Santos, Regina H. A. [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, Dept Quim & Fis Mol, BR-13560970 Sao Paulo, Brazil
[2] UNESP, Fac Ciencias, Dept Quim, BR-17033360 Bauru, SP, Brazil
[3] UNESP, Inst Quim, Dept Quim Geral & Inorganca, BR-14801970 Araraquara, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Cyclometallated; Palladium; Nitro compounds; X-RAY; PALLADIUM(II) COMPOUNDS; BUILDING-BLOCKS; LIQUID-CRYSTALS; SCHIFF-BASES; COMPLEXES; COORDINATION; LIGANDS; REDUCTION; CHEMISTRY;
D O I
10.1016/j.poly.2008.10.048
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In the treatment of cyclometallated dimer [Pd(dmba)(mu-Cl)](2) (dmba = N,N-dimethylbenzylamine) with AgNO3 and acetonitrile the result was the monomeric cationic precursor [Pd(dmba)(NCMe)(2)](NO3) (NCMe=acetonitrile) (1). Compound 1 reacted with m-nitroaniline (m-NAN) and pirazine (pz), originating [Pd(dmba)(ONO2)(m-NAN)] (2) and [{Pd(dmba)(ONO2)}(2)(mu-pz)] center dot H2O (3), respectively. These compounds were characterized by elemental analysis, IR and NMR spectroscopy. The IR spectra of (2-3) display typical bands of monodentade O-bonded nitrate groups, whereas the NMR data of 3 are consistent with the presence of bridging pyrazine ligands. The structure of compound 3 was determined by Xray diffraction analysis. This packing consists of a supramolecular chain formed by hydrogen bonding between the water molecule and nitrato ligands of two consecutive [Pd-2(dmba)(2)(ONO2)2(mu-pz)] units. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:286 / 290
页数:5
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