Naphthylimido-substituted hexamolybdate: preparation, crystal structures, solvent effects, and optical properties of three polymorphs.
[(n-C4H9)4N]2[Mo6O18(N-1-C10H(6)-2-CH3)] (1) has been prepared by the reaction of 1-amino-2-methylnaphthalene hydrochloride with [(n-C4H9)4N]4[alpha-Mo8O26] in the presence of 1,3-dicyclohexylcarbodiimide. Three solvent-free crystalline phases are isolated from the mixed solvents of acetone and acetic ether. The X-ray single-crystal structures of the three phases have been determined, showing the packing and supramolecular assembly characters (pseudohigher symmetry, helical chains, and pi-pi stacking) by which the effect of solvent polarity and crystallization speed on polymorphism in organic-inorganic hybrids has been demonstrated.
Hao
Jian
J
Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
Ruhlmann
Laurent
L
Zhu
Yulin
Y
Li
Qiang
Q
Wei
Yongge
Y
D003460:Crystallization; D018360:Crystallography, X-Ray; D007094:Imides / Q000737:chemistry; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry*; D009281:Naphthalenes / Q000737:chemistry*; D012997:Solvents; D013057:Spectrum Analysis
D007094:Imides; D009281:Naphthalenes; D012997:Solvents; C044659:molybdate; D008982:Molybdenum