Journal of Chemical Crystallography p. 105 - 110 (2011)
Update date:2022-07-29
Topics:
Kunz, Peter C.
Huber, Wilhelm
Spingler, Bernhard
The three title compounds show extensive hydrogen bonding networks in the solid state. The structure of diphenyl-2-isopropylimidazol-4(5)yl phosphane oxide (3) is dominated by N-H...OP hydrogen bonds, whereas in bis(2-isopropylimidazol-4(5)-yl)phenyl- (2) and tris(2-isopropylimidazol-4(5)yl) phosphane oxide (1) both, N-H...N and N-H...OP hydrogen bonds determine the solid-state structures. Compound 1 crystallises in the monoclinic space group Cc with cell parameters a = 19.5447(6) A, b = 10.45764(16) A, c = 10.8549(3) A and β = 121.418(4)°; 2 in the orthorhombic space group Pna21, with a = 11.5997(3) A, b = 9.5836(2) A, c = 16.1860(4) A and 3 in the orthorhombic space group Pca21, with a = 10.8430(2) A, b = 10.9277(2) A and c = 27.7088(6) A.
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