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
相关论文
共 59 条
[11]   ORTHOMETALATED PALLADIUM(II) COMPLEX-CATALYZED REDUCTION OF NITROALKANES AND NITRILES [J].
BOSE, A ;
SAHA, CR .
JOURNAL OF MOLECULAR CATALYSIS, 1989, 49 (03) :271-283
[12]   Monomeric and dimeric ortho-metallated palladium(II)-imine systems as liquid crystals [J].
Buey, J ;
Espinet, P .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1996, 507 (1-2) :137-145
[13]   Cyclometallated fragments as building blocks for self-assembly reactions [J].
Carina, RF ;
Williams, AF ;
Bernardinelli, G .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1997, 548 (01) :45-48
[14]   New Pd(II) and Pt(II) complexes with N,S-chelated pyrazolonate ligands:: Molecular and supramolecular structure and preliminary study of their in vitro antitumoral activity [J].
Casas, Jose S. ;
Castellano, Eduardo E. ;
Ellena, Javier ;
Garcia-Tasende, Maria S. ;
Perez-Paralle, M. Luz ;
Sanchez, Agustin ;
Sanchez-Gonzalez, Angeles ;
Sordo, Jos ;
Touceda, Angeles .
JOURNAL OF INORGANIC BIOCHEMISTRY, 2008, 102 (01) :33-45
[15]   Self-assembly of CuII and NiII [2x2] grid complexes and a binuclear CuII complex with a new semiflexible substituted pyrazine ligand:: Multiple anion encapsulation and magnetic properties [J].
Cati, DS ;
Ribas, J ;
Ribas-Ariño, J ;
Stoeckli-Evans, H .
INORGANIC CHEMISTRY, 2004, 43 (03) :1021-1030
[16]   Cyclopalladated Schiff's base liquid crystals: the effect of the acac group on the thermal behaviour [J].
Cave, GWV ;
Lydon, DP ;
Rourke, JP .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1998, 555 (01) :81-88
[17]   SOME NITRATO-AMINE NICKEL(2) COMPOUNDS WITH MONODENTATE AND BIDENTATE NITRATE IONS [J].
CURTIS, NF ;
CURTIS, YM .
INORGANIC CHEMISTRY, 1965, 4 (06) :804-&
[18]   Cyclometallated imine complexes with oxygen-functionalised side-chains: Effect of the nature of the functional group, chain length and charge on coordination of the oxygen [J].
Davies, David L. ;
Al-Duaij, Omar ;
Fawcett, John ;
Singh, Kuldip .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2008, 693 (06) :965-980
[19]   SYNTHESIS, CHARACTERIZATION, AND X-RAY STUDIES OF NONPLANAR MESOGENS - CARBOXYLATO-BRIDGED ORTHOPALLADATED AZINE COMPLEXES [J].
ESPINET, P ;
PEREZ, J ;
MARCOS, M ;
ROS, MB ;
SERRANO, JL ;
BARBERA, J ;
LEVELUT, AM .
ORGANOMETALLICS, 1990, 9 (07) :2028-2033
[20]  
Farrugia L. J., 1999, J. Appl. Crystallogr, V32, P837, DOI [DOI 10.1107/S0021889812029111, DOI 10.1107/S0021889899006020]