ISSN:
1434-1948
Schlagwort(e):
Indium
;
Chalcogens
;
Chelates
;
Phosphazenes
;
Metallacycles
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The ligands [Ph2(S)PNHP(X)Ph2]- (X = O, Se) react with InCl3 in a 3:1 ratio to give a tris-chelate [In{Ph2P(O)NP(S)Ph2-O,S}3]·0.75 C6H6 (2) and the unexpected pentacoordinate derivative [InCl{Ph2P(Se)NP(S)Ph2-Se,S}2] (3). These compounds have been characterized by means of IR, 1H- and 31P-NMR spectroscopy, positive-ion FAB mass spectrometry and elemental analysis. The molecular structures have been determined by single-crystal X-ray diffraction analysis. The coordination geometry in 2 resembles that observed in the three analogous tris-chelates incorporating the corresponding symmetrical oxygen, sulfur and selenium ligands. Compound 3 exhibits a very distorted trigonal-bipyramidal geometry at indium, where both the selenium and chlorine atoms are in equatorial positions, while the sulfur atoms are in axial positions.
Zusätzliches Material:
2 Ill.
Materialart:
Digitale Medien
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