NH center dot center dot center dot O and NH center dot center dot center dot N Hydrogen Bonded Networks in Imidazole-Based Phosphane Oxides: Structures of Tris(2-Isopropylimidazol-4(5)-yl)Phosphane Oxide, Bis(2-Isopropylimidazol-4(5)-yl)Phosphane Oxide and Diphenyl-2-Isopropylimidazol-4(5)-yl Phosphane Oxide

作者：Kunz Peter C^*; Huber Wilhelm; Spingler Bernhard

来源：Journal of Chemical Crystallography, 2011, 41(2): 105-110.

DOI：10.1007/s10870-010-9845-0

• Tris(imidazolyl)phosphane oxide
• Imidazolyl phosphane oxide
• Heterocyclic phosphane oxide

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 center dot center dot center dot 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 center dot center dot center dot N and N-Ha center dot center dot center dot OP hydrogen bonds determine the solid-state structures. Compound 1 crystallises in the monoclinic space group Cc with cell parameters a = 19.5447(6) angstrom, b = 10.45764(16) angstrom, c = 10.8549(3) angstrom and beta = 121.418(4)degrees; 2 in the orthorhombic space group Pna2(1), with a = 11.5997(3) angstrom, b = 9.5836(2) angstrom, c = 16.1860(4) and 3 in the orthorhombic space group Pca2(1), with a = 10.8430(2) angstrom, b = 10.9277(2) and c = 27.7088(6) angstrom.

• 出版日期2011-2