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Mitea R.,Supramolecular Organic and Organometallic Chemistry Center | Covaci A.,Supramolecular Organic and Organometallic Chemistry Center | Silvestru C.,Supramolecular Organic and Organometallic Chemistry Center | Silvestru A.,Supramolecular Organic and Organometallic Chemistry Center
Revue Roumaine de Chimie | Year: 2013

Reactions between triarylphosphanes of type P(C6H4CH2NMe 2-2)xPh3-x [x = 1(1), 2(2), 3 (3)] and CoCl2·6H2O in a 1:1 molar ratio resulted in cobalt(II) complexes of type [CoCl2{P(C6H4CH2NMe2-2) xPh3-x}] [x = 1(4), 2(5), 3 (6)]. The new species were isolated as blue solids and they were investigated by 1H and 31P NMR, mass spectrometry and electronic spectroscopy. X-ray diffraction studies revealed a monomeric structure in case of the starting phosphane P(C6H4CH2NMe2-2)2Ph (2), in which one 2-(Me 2NCH2)C6H4 pendant arm is involved in an intramolecular N→P interaction. The oxidized species [CoCl2{OP(C6H4CH 2NMe2-2)xPh3-x}] [x = 2 (5a), 3 (6a)] were also isolated as blue solids. A similar coordination pattern as in case of the related [ZnCl2{OP(C6H4CH 2NMe2-2)2Ph}] (7) might be proposed for such oxidized species.


Toth A.,Supramolecular Organic and Organometallic Chemistry Center | Lupan A.,Supramolecular Organic and Organometallic Chemistry Center | Rat C.I.,Supramolecular Organic and Organometallic Chemistry Center | Silvestru C.,Supramolecular Organic and Organometallic Chemistry Center | Silvestru A.,Supramolecular Organic and Organometallic Chemistry Center
Revue Roumaine de Chimie | Year: 2013

The organophosphorus acid (SePPh2)[OP(OEt)2]NH (1) as well as its potassium salt K[(SePPh2){OP(OEt)2}N] (2) were prepared and structurally characterized. One-pot reactions between MCl 2, tBuOK and 1, in a 1:2:2 molar ratio, resulted in group 12 metal complexes of type M[(SePPh2){OP(OEt)2}N] 2 [M = Zn (3), Cd (4)]. All compounds were investigated by multinuclear NMR (1H, 13,C, 31P, 77Se). Single-crystal X-ray diffraction studies revealed dimeric associations in case of acid 1, established through NH···O= P hydrogen bonding.

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