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Synthese, Kristallstruktur und spektroskopische Charakterisierung von [Au 12 (PPh) 2 (P 2 Ph 2 ) 2 (dppm) 4 Cl 2 ]Cl 2
Author(s) -
Sevillano Paloma,
Fuhr Olaf,
Matern Eberhard,
Fenske Dieter
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500416
Subject(s) - chemistry , crystal structure , dication , denticity , phosphine , crystallography , nuclear magnetic resonance spectroscopy , infrared spectroscopy , stereochemistry , molecule , catalysis , biochemistry , organic chemistry
Synthesis, Crystal Structure and Spectroscopic Characterization of [Au 12 (PPh) 2 (P 2 Ph 2 ) 2 (dppm) 4 Cl 2 ]Cl 2 The reaction of [(AuCl) 2 dppm] (dppm = Ph 2 PCH 2 PPh 2 ) with P(Ph)(SiMe 3 ) 2 in CHCl 3 results in the formation of [Au 12 (PPh) 2 (P 2 Ph 2 ) 2 (dppm) 4 Cl 2 ]Cl 2 ( 1 ), the crystal structure of which was determined by single crystal X‐ray analysis (space group P 2 1 / c , a = 1425.3(3) pm, b = 2803.7(6) pm, c = 2255.0(5) pm, β = 95.00(3)°, V = 8977(3)·10 6 pm 3 , Z = 2). The dication in 1 consists of two Au 6 P 3 units built by highly distorted Au 3 P and Au 2 P 2 heterotetrahedra, connected via four bidentate phosphine ligands. Additionally, the compound was characterized by IR‐, UV‐ and NMR spectroscopy. The 31 P{ 1 H} NMR spectrum is discussed in detail.