Abstract
The compounds {[Fe(phen)3]2+(TCNQ–TCNQ)2−) · 2(CH3OH)} (FIWPRD), {[Fe(C5H5)(C5H4CH2NMe3)]+)(TCNQ−) (IKONOL), and {[Cu(1,4,5,12-tetraazacyclo-pentadecane)]2+(TCNQ−)2} (AVOJEA) were reported in the non-centrosymmetric space groups Cc (#9), Pna21 (#33), and P1 (#1). Examination of the several sets of atomic coordinates shows that the space groups are more likely to be C2/c (#15), Pnma (#63), and \( P\bar 1 \) (#2), respectively. Confirmation of the centrosymmetric models requires access to the diffraction intensities; unfortunately these are not in the public domain.
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