Thermal decomposition of trialkyl/arylphosphine gold(I) cyanide complexes

被引：7

作者：

Akhtar, MN ^{[1
]}

Isab, AA

Hassan, A

机构：

[1] King Fahd Univ Petr & Minerals, Res Inst, Ctr Refining & Petrochem, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2000年 / 61卷 / 01期

关键词：

alkyl; arylphosphine gold(I) cyanide; redox reaction; thermal decomposition;

D O I：

10.1023/A:1010164725008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Combined TG/DTA techniques have been used to study the thermal decomposition of R3PAuCN (where R is ethyl, cyclohexyl, o-tolyl, m-tolyl, p-tolyl, allyl, cyanoethyl, 1-naphthyl and phenyl) complexes. It was observed that all of these complexes underwant decomposition cum redox reactions in the range of 200-600 degrees C with evolution of both trans ligands, which are phosphine and cyanide, leaving metallic gold as a residue. The thermal decomposition of o-Tol(3)PAuCN has revealed that this is a stepwise process. In the first step decomposition takes place with evolution of phosphine and generation of AuCN, which in second step undergoes a redox reaction to produce metallic gold. The DTA curves have also confirmed these results.

引用

页码：119 / 125

页数：7

共 19 条

[1] SYNTHESIS AND CRYSTAL-STRUCTURE OF CYANO(TRIMETHYLPHOSPHINE)GOLD(I) [J].

AHRLAND, S ;

AURIVILLIUS, B ;

DREISCH, K ;

NOREN, B ;

OSKARSSON, A .

ACTA CHEMICA SCANDINAVICA, 1992, 46 (03) :262-265

[2] N-15 and P-31 NMR studies of cyano (trialkyl/triaryl)phosphine gold(I) complexes [J].

Akhtar, MN ;

Gazi, IH ;

Isab, AA ;

AlArfaj, AR ;

Wazeer, MIM ;

Hussain, MS .

JOURNAL OF COORDINATION CHEMISTRY, 1995, 36 (02) :149-157

[3] Cyano[tri(cyclohexyl)phosphino]gold(I), [Au(CN){(C6H11)(3)P}] [J].

AlArfaj, AR ;

Reibenspies, JH ;

Hussain, MS ;

Darensbourg, MY ;

Akhtar, N ;

Isab, AA .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1997, 53 :1553-1555

[4] THE CHEMISTRY OF THE GOLD DRUGS USED IN THE TREATMENT OF RHEUMATOID-ARTHRITIS [J].

BROWN, DH ;

SMITH, WE .

CHEMICAL SOCIETY REVIEWS, 1980, 9 (02) :217-240

[5]

DERBY PW, 1967, J OPHTHALMOL, V51, P336

[6] THE EFFECT OF CYANIDE ON THE UPTAKE OF GOLD BY RED-BLOOD-CELLS [J].

GRAHAM, GG ;

HAAVISTO, TM ;

JONES, HM ;

CHAMPION, GD .

BIOCHEMICAL PHARMACOLOGY, 1984, 33 (08) :1257-1262

[7]

GRAHAM GG, 1982, J RHEUMATOL, V4, P527

[8]

HERMANNARENDT AL, 1990, INORG CHEM, V29, P4683

[9]

HILL DT, 1980, CRYST STRUCT COMMUN, V9, P679

[10] SOLID-STATE STRUCTURE AND SOLUTION EQUILIBRIA OF CYANO(TRIETHYLPHOSPHINE)GOLD(I) [J].

HORMANN, AL ;

SHAW, CF ;

BENNETT, DW ;

REIFF, WM .

INORGANIC CHEMISTRY, 1986, 25 (22) :3953-3957

← 1 2 →