【摘 要】
:
The title compound, 2,6-bis(benzimidazo(1,2-c)quinazolin-6-yl)pyridine tetrahy-drate, was synthesized by simple condensation of 2-(2-sminophenyl) benzimidazole
【机 构】
:
College of Chemistry and Materials Science,State Key Laboratory of Structural Chemistry
【基金项目】
:
福建省自然科学基金;the Ministry of Education of China;the Education Department of Fujian Province;the State Key Laboratory of Structural Chemistry
论文部分内容阅读
The title compound, 2,6-bis(benzimidazo(1,2-c)quinazolin-6-yl)pyridine tetrahy-drate, was synthesized by simple condensation of 2-(2-sminophenyl) benzimidazole with pyridine-2,6-dicarboxylic acid and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group C2/c with a = 22.226(8), b =16.730(7), c = 16.820(5) (A°),β = 115.796(13)°, V = 5631 (4)(A°)3, C33H27N7O4, Mr= 585.62, Z = 8, Dc= 1.381 g/cm3, λ(MoKa) = 0.71073 (A°), F(000) = 2448 and μ= 0.09 mm-1. The structure was refined to the final R = 0.0730 and wR = 0.1573 for 6346 independent reflections (Rint = 0.0801) and 3384 observed reflections (I> 2σ(I)). In the crystal, the molecules are linked through intermolecular A) are pronounced in the crystal structure.
其他文献
A zirconium-titanium based amino trimethylene phosphonate hybrid coating on AA6061 aluminum alloys was formed by dipping in a fluorotitanate/zirconate acid and
Model I quasi-static nonlinear fracture of aluminum foams is analyzed by considering the effect of microscopic heterogeneity.Firstly,a continuum constitutive mo
Highly efficient Michael addition reactions of malonates to nitroalkenes catalyzed by novel chiral thioureas derived from optically pure BINOL and amino acids a
The experimental study of air-entrained concrete specimens subjected to different cycles of freeze-thaw was completed.The dynamic modulus of elasticity,weight l
A new non-hydrostatic numerical model with the three-dimensional Navier-Stokes equations on structured grids was constructed and discussed. The algorithm is bas
The impeller of turbo machinery is a typical nonlinear multi-oscillator system. The vibration of each module is coupling, including fluid-solid coupling of the
alkylation and cyclization. The reaction conditions were mild and the overall yields of the products ranged from 45% to 71%.
The fracture investigations of the planar lattices made of ductile cell walls are cur-rently limited to bending-dominated hexagonal honeycomb. In this paper, th
Based on three-dimensional (3D) acceleration sensing, an intelligent particle spy capable of detecting, transferring, and storing data, is proposed under the na
Due to large topography slopes in natural rivers, pollutant concentration embodies a property of three-dimensional distribution when wastewater is discharged fr