Polynuclear gold(I) complexes of mercaptocarboxylic acids

被引:41
作者
Sladek, A [1 ]
Schneider, W [1 ]
Angermaier, K [1 ]
Bauer, A [1 ]
Schmidbaur, H [1 ]
机构
[1] TECH UNIV MUNICH,INST ANORGAN CHEM,D-85747 GARCHING,GERMANY
来源
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1996年 / 51卷 / 06期
关键词
D O I
10.1515/znb-1996-0602
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In a search for air-stable and water-soluble mercapto compounds of gold with a high gold content, benzylthiol, alpha-mercapto-acetic acid, beta-mercapto-propionic acid, and thiosalicylic acid were converted into aurated sulfonium salts by treatment with reagents of the type [(R(3)P)Au]O-3(+) BF4- or [(R(3)P)Au](+) BF4-. -BzSH served as a mono-functional model thiol, which was converted into BzS[Au(PMe(3))](2+) BF4- (1). The small tertiary phosphine was chosen in order to minimize steric effects. In the crystal the cations are associated into centrosymmetrical dimers through short Au-Au contacts (auriophilicity). - The two carboxylic acids with thiol functions, HSCH2COOH and HSCH2CH2COOH, gave triply aurated species of the type {[(Ph(3)P)Au]S-2(CH2)(n)COOAu(PPh(3))}(+) BF4- (2: n = 2, 3: n = 3). The crystal structure analysis sis of the representative compound 2 showed again the presence of centrosymmetrical cation dimers with geometrical details of the sulfonium part of the molecules very similar to those of the reference compound 1. In addition, the carboxyl groups in 2 and 3 bear a (phosphine)gold unit mono-hapto bound at one of the oxygen atoms. -2-HS-C6H4-COOH was converted into a sulfonium salt {[(Ph(3)P)Au]S-2-C6H4-COOH}(+) BF4- (4). which crystallizes free of solvent from dry dichloromethane, and as a monohydrate with one mole of dichloromethane (4a = 4 . H2O . CH2Cl2) from hydrous CH2Cl2. In the solvent-free crystalline phase (4) the cations are associated into dimers with the usual intermolecular double Au-Au contacts, but in 4a there are monomeric cations with the water molecule hydrogen-bonded to the carboxylic acid function.
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页码:765 / 772
页数:8
相关论文
共 33 条
[1]   INTERACTION OF THIOSILANES AND DISILTHIANES WITH SOME TRANSITIONAL AND POST-TRANSITIONAL METAL HALIDES [J].
ABEL, EW ;
JENKINS, CR .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1968, 14 (02) :285-&
[2]   CRYSTAL-STRUCTURES OF CHLORO(TRIMETHYLPHOSPHINE)GOLD(I), CHLORO(TRI-(I)PROPYLPHOSPHINE)GOLD(2) AND BIS(TRIMETHYLPHOSPHINE)GOLD(I) CHLORIDE [J].
ANGERMAIER, K ;
ZELLER, E ;
SCHMIDBAUR, H .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1994, 472 (1-2) :371-376
[3]  
ANGERMAIER K, 1995, THESIS TU MUNICH
[4]  
BARIN CD, 1989, ANGEW CHEM INT EDIT, V28, P506
[5]   SYNTHESIS AND CHARACTERIZATION OF GOLD(I) THIOLATES, SELENOLATES, AND TELLUROLATES - X-RAY CRYSTAL-STRUCTURES OF AU4[TEC(SIME3)3]4, AU4[SC(SIME3)3]4, AND PH3PAU[TEC(SIME3)3] [J].
BONASIA, PJ ;
GINDELBERGER, DE ;
ARNOLD, J .
INORGANIC CHEMISTRY, 1993, 32 (23) :5126-5131
[6]  
CIMENO MC, 1994, INORG CHEM, V33, P3932
[7]   SYNTHESES AND STRUCTURAL STUDIES OF TRIORGANOPHOSPHINEGOLD(I) MERCAPTOBENZOATE COMPLEXES [J].
COOKSON, PD ;
TIEKINK, ERT .
JOURNAL OF COORDINATION CHEMISTRY, 1992, 26 (04) :313-320
[8]  
DASH KC, 1982, MET IONS BIOL SYST, V14, P179
[9]   SYNTHESES AND CHARACTERIZATION OF DINUCLEAR GOLD(I) RING AND OPEN-RING COMPLEXES CONTAINING SATURATED AND UNSATURATED DITHIOL BRIDGING LIGANDS AND PHOSPHINE OR BIS(DIPHOSPHINE) DONOR LIGANDS - CRYSTAL-STRUCTURES OF [AU2(MU-S(CH2)3S)(MU-DPPM)],[AU2(MU-MNT)(PPH3)2], [AU2(MU-S2C6H4)(PPH3)2], AND [AU4(MU-S2C6H3CH3)2(PET3)2] [J].
DAVILA, RM ;
ELDUQUE, A ;
GRANT, T ;
STAPLES, RJ ;
FACKLER, JP .
INORGANIC CHEMISTRY, 1993, 32 (09) :1749-1755
[10]  
Grandberg, 1992, RUSS J INORG CHEM, V37, P1420