Crystal structures of Ph2Te(S2P(OEt)2)2 and of two modifications of Ph2Te(S2CNEt2)2

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Abstract

Crystals of Ph2Te[S2CNEt2]2 are monclinic; one modification has space group P21, a 8.3349(9), b 8.389(1), c 18.106(2) Å, β 92.51(1)°, Z = 2. The second modification of Ph2Te[S2CNEt2]2 has space group C2/c, a 16.552(2), b 14.363(3), c 12.184(2) Å, β 121.61(1)°, Z = 4. Crystals of Ph2Te[S2(OEt)2]2 (3) are orthorhombic, space group P212121, a 8.297(1), b 16.311(3), c 21.117(3) Å. All three structures are monomeric and contain a stereochemically active lone pair at the tellurium atom, making the Te effectively seven coordinate in each case.

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