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Structural and Physical Characterization of 1:1 9,9′‐Bifluorenylidene Complex with 7,7,8,8‐Tetracyanoquinodimethane, BFL‐TCNQ
Author(s) -
Lee JungSi,
Chen IngYung
Publication year - 1989
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198900018
Subject(s) - chemistry , tetracyanoquinodimethane , monoclinic crystal system , molecule , crystallography , diamagnetism , crystal structure , charge transfer complex , crystal (programming language) , organic chemistry , physics , quantum mechanics , magnetic field , computer science , programming language
The crystal and molecular structure of BFL‐TCNQ has been determined by single‐crystal X‐ray diffraction analysis. The complex crystallizes in the monoclinic space group C2/c, a=17.915(3), b=12.238(3), c=13.531(3) Å, β = 115.16(1)°, and Z=4. The complex has a mixed‐stacked crystal structure in which BFL molecules exist in a twisted conformation and TCNQ molecules are dimensionally similar to uncomplexed TCNQ. The complex is diamagnetic and is an insulator with a room‐temperature conductivity less than 10 −9 s cm −1 . The FT‐IR spectrum of the BFL‐TCNQ complex reveals that the degree of charge transfer between the two component molecules is essentially null.