Synthesis and Structure of 6'-Diethylamino-2'-phenacylami nospiro-[isobenzofuran- 1 (3H), 9'- [9H]xanthen]-3-one

被引：0
|
作者：
WEN Xin
LI Wei-Zhong
MIAO Zhi-Wei
CHENG Qing-Yan
LIU Xiao-Lan
MIAO Fang-Ming(Institute of Chemical Crystallography
机构：
来源：
结构化学 | 1998年 / 04期
关键词：
synthesis; structure; fluoran compound;
D O I：
10.14102/j.cnki.0254-5861.1998.04.005
中图分类号：
O641 [结构化学];
学科分类号：
摘要：
The crystal structure of the title compound, C32H28N2O4 was determined by X-ray diffraction method. Crystallographic data are as follows: Mr =504. 59, monoclinic, space group P21/c with cell dimensions of a = 11. 778 (3), b=8. 416(3), c=26. 310(6) A, β= 95. 74 (2)°, V= 2594. 72(2) A3, Z=4, Dc=1. 292g. cm-3, μ=0. 80cm-1, F(000) = 1064, R=0. 045, m= 0. 048 for 1124 reflections with I≥3(I). The molecule of the title compound has T style structure. Thelactone-benzene group is nearly perpendicular to the xanthene moiety. The C-O bondin the lactone ring is 1. 516(8) A, which is longer than that in the normal lactonering, and this indicates severe weakness of the bond.
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页码：253 / 256
页数：4
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