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7681731 
Journal Article 
Synthesis, Crystal Structure and Thermal Property of Dimethyl Phenanthrene-9,10-dicarboxylate 
Luo Zai-Gang; Liu Qian-Nan; Li Rui; Xu Xue-Mei 
2020 
Yes 
Chinese Journal of Structural Chemistry
ISSN: 0254-5861 
Fujian Institute of Research of the Structure of Matter 
39 
5 
908-912 
English 
WOS:000551342100013 
The target compound (C18H14O4) was synthesized and structurally determined by single-crystal X-ray diffraction. The crystal is of monoclinic system, space group P21/n with a = 7.9383(6), b = 19.5083(13), c = 9.4189(7) Å, β = 98.981(2)°, C18H14O4, Mr = 294.29, Dc = 1.357 g/cm3, V = 1440.75(18) Å3, Z = 4, F(000) = 616, µ(MoKa) = 0.096 mm-1, T = 293(2) K, 3320 independent reflections with 1845 observed ones (I > 2σ(I)), R = 0.0529 and wR = 0.1082 with GOF = 1.015 (R = 0.1202 and wR = 0.1278 for all data). The phenanthrene skeleton is coplanar. The overall crystal packing revealed that it has reverse staggered parallel and stratified arrangement. And a one-dimensional interaction model was formed by two kinds of π-π interactions between the two adjacent molecules at upper and lower levels. The decomposition mechanism of compound 3 is complex. © 2020 Fujian Institute of Research of the Structure of Matter. All rights reserved. 
phenanthrene; synthesis; crystal structure; thermal property