【摘 要】
：
The title compound (C20H30N4O6, Mr = 422.48) was synthesized and its crystal structure was determined by X-ray diffraction method. It crystallizes in the tricli
论文部分内容阅读
The title compound (C20H30N4O6, Mr = 422.48) was synthesized and its crystal structure was determined by X-ray diffraction method. It crystallizes in the triclinic system, space group P with cell parameters: a = 8.330(2), b = 8.468(2), c = 16.017(3) ? ?= 97.30(3), ?= 92.33(3), ?= 103.94(3)? V = 1084.7(4) ?, Dc = 1.294 g/cm3, Z = 2, F(000) = 452 and ?= 0.096 mm-1. The structure was refined to R = 0.0483 for 3732 observed reflections with I > 2s(I) and wR = 0.1335 for 4828 unique reflections. The hydantoin rings are planar and the two ring planes of one molecule are paralleled to each other.
It crystallizes in the triclinic system, space group P with cell parameters: a = 8.330 (2), b = 8.468 (2) D = 1.294 g / cm3, Z = 2, c = 16.017 3 =? 97.30 ?,? = 92.33 ?,? = 103.94? V = 1084.7? The structure was refined to R = 0.0483 for 3732 observed reflections with I> 2s (I) and wR = 0.1335 for 4828 unique reflections. The hydantoin rings are planar and the two ring planes of one molecule are paralleled to each other.
其他文献
一、期货合同 (一)期货合同的概念从严格定义上讲,期货合同(futures contract)是指由期货交易所制订的、由交易双方在指定的交易所中按规定的交易规则达成的在规定时间和地
根据上海医药站、上海市医药公司、济南医药站、青岛医药站、济宁医药(集团)总公司、淄博医药站、福建省医药公司、福州医药站、厦门医药站、杭州医药站、宁波医药站、金华
语言政策是一个国家历史性、民族性的缩影。语言政策作为一项语言施力载体对一个国家的民族发展与社会和谐至关重要。而社会学概念帕累托最优作为效率与公平的“乌托邦”自然
反复呼吸道感染（ＲＲＩ简称复感）是小儿时期的多发病，近年来发病率有所上升。目前，西医治疗ＲＲＩ初期用抗感冒药，迁延期用左旋咪唑、胸腺肽、转移因子、卡慢舒等。中药治疗小儿ＲＲＩ以个人临床经验
The role of NMR in the pharmaceutical industry has changed dramatically over the lastdecade. Once thought of as an analytical technique used primdrily to suppor
The two-stream instability is common, responsible for many observed phenomena in nature, especially the interaction of jets of various origins with the backgrou
Functionalized benzylic zinc halides reacted with benzaldehydes in the presence of Lewis acid Me3SiCl giving high yields of trans-stilbenes under the catalysis
In this work, DSC and SEM studies indicate that ion-ligand interaction can be utilized to enhance the interaction of poly (styrene-block-2-vinyl pyridine)[P (S-
A 3-D coordination polymer [PbNH(CH2COO)2] 1 has been prepared under hydrothermal conditions and its crystal structure was studied by single-crystal X-ray diffr
The gelating and swelling mechanisms of the hydrogel formed from oxidized konjac glucomannan (OKGM) and chitosan (CS) were studied by Fourier transform infrared