%0 Journal Article
%T Morphological Change of Cocrystal Bis(8-Quinolinolato) Copper(II): 7,7,8,8-Tetracyanoquinodimethane Polymorphism
%A Norihito Doki
%A Minami Nomura
%A Masaaki Yokota
%J Advances in Chemical Engineering and Science
%P 1-6
%@ 2160-0406
%D 2023
%I Scientific Research Publishing
%R 10.4236/aces.2023.131001
%X We
studied cocrystal of bis(8-quinolinolato) copper(II) (CuQ<sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">) and
7,7,8,8</span><span style=\"font-family:Verdana;\">-</span><span style=\"font-family:Verdana;\">tetracyanoquinodimethane (TCNQ), which change dramatically crystal shape
in a moment by adding press on crystal face. Single crystal </span><span style=\"font-family:Verdana;\">was </span><span style=\"font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\">prepared by dissolving CuQ</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\"> and TCNQ in chloroform by
evaporation of the solution at ambient conditions. We investigated </span></span><span style=\"font-family:Verdana;\">about </span><span style=\"font-family:Verdana;\">crystal structure and morphological change properties. We proclaim that
this phenomenon is solid phase transition to Form I from Form II, it is caused
by pressure on the crystal face (001) of Form II and the crystal expansion
direction is the side face (100). We take note of the common structure between
polymorph and explain that this transition occurs by the structure like
dominoes falling. We obtained a correlation between molecular level structure
change and macroscopic shape changes.</span>
%K Crystal Morphology
%K Crystal Structure
%K Organic Compounds
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=121963