CRYSTAL-STRUCTURES AND MAGNETIC-PROPERTIES OF TETRAFLUOROTETRACYANOQUINODIMETHANIDE SALTS

Authors
UEDA K MORIMOTO H SUGIMOTO T KANEHISA N SHIBAMOTO Y KAI Y
Citation
K. Ueda et al., CRYSTAL-STRUCTURES AND MAGNETIC-PROPERTIES OF TETRAFLUOROTETRACYANOQUINODIMETHANIDE SALTS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 278, 1996, pp. 123-132
Citations number
8
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
278
Year of publication
1996
Pages
123 - 132
Database
ISI
SICI code
1058-725X(1996)278:<123:CAMOT>2.0.ZU;2-E
Abstract
The X-ray structure analyses of tetramethylammonium and tetraethylammo nium salts of tetrafluorotetracyanoquinodimethanide (TCNQF(4)(-.)) (NM e(4)(+). TCNQF(4)(-.) and NEt(4)(+). TCNQF(4)(-.)) were performed. In these crystals the TCNQF(4)(-.) molecules form dimers, which are stack ed in a plane-to-plane manner to columns. Recrystallization of NMe(4)( +). TCNQF(4)(-.) in the presence of TCNQF(4) (or TCNQ) gave a single c rystal of (NMe(4)(+). TCNQF(4)(-.)) 1/2TCNQF(4) (or TCNQ). The crystal is composed of alternating TCNQF(4) (or TCNQ)/TCNQF(4)(-.) and NMe(4) (+) ion layers, and the TCNQF(4) (or TCNQ)/TCNQF(4)(-.) layer adopts a unique packing structure, in which each pair of two TCNQF(4)(-.) mole cules is arranged in a completely perpendicular manner to each of one TCNQF(4) (or TCNQ) molecule. The similar TCNQF(4) (or TCNQ)/TCNQF(4)(- .) mixed salt was not obtained in use of NEt(4)(+). TCNQF(4)(-.) at al l.