Synthesis and crystal structures of two potential gem-di (pyrazolyl) cycloalkane ligands, 1, 1-di (pyrazol-1-yl) cyclohexane [C6H10 (C3N2H3) 2] and 1, 1-di (pyrazol-1- …

…, KJ Takeuchi, AJ Distefano, DL Jameson

Index: Churchill, Melvyn Rowen; Churchill, David George; Huynh, My Hang Vo; Takeuchi, Kenneth J.; Distefano, Alison J.; Jameson, Donald L. Journal of Chemical Crystallography, 1999 , vol. 29, # 6 p. 659 - 665

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Abstract

Abstract The species 1, 1-di (pyrazol-1-yl) cyclohexane, C 12 H 16 N 4, crystallizes in the monoclinic space group P 2 1/c with a= 8.340 (2), b= 14.281 (5), c= 10.153 (3) Å, β= 106.86 (2)°, and Z= 4. The cyclohexane moiety has the chair conformation. The congener, 1, 1-di (pyrazol-1-yl) cyclopentane, C 11 H 14 N 4, while not isomorphous, also crystallizes in space group P 2 1/c with a= 14.350 (2), b= 6.776 (1), c= 11.043 (2) Å, β= 100.68 (1)°, and ...