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Synthesis, Crystal Structure and Spectroscopic Studies of New Charge Transfer Compounds Obtained by Reaction of TTF and the Polyoxoanion [Mo6O19]2−

Published online by Cambridge University Press:  25 February 2011

C. Bellitto ,
D. Attanasio ,
M. Bonamico ,
V. Fares ,
P. Imperatori  and
S. Patrizio
C. Bellitto
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
D. Attanasio
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
M. Bonamico
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
V. Fares
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
P. Imperatori
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
S. Patrizio
Affiliation:
Istituto ITSE - C.N.R., Area della Ricerca di Roma, Via Salaria Km. 29.5, CP.10, 1-00016 Monterotondo Staz., (Roma), Italy.
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Abstract

Two different tetrathiafulvalene radical cation salts of the [M06O19]2− polyoxoanion have been isolated and characterized. Compound 1 corresponds to the chemical formula (TTF)3[Mo6019]. The crystal structure shows a ID stack of the donor TTF molecule, and each stack fits into channels formed by the anions. Within the stack a chain of trimers is identified, the inter-trimeric distance being 3.51 Å. The I.R., electronic and XPS spectra suggest the compound to be a mixed-valence salt. The electrical conductivity at room temperature is σ = 10−4 Ω−1 cm−1 Compound 2 corresponds to the chemical+formula (TTF)2[M06019] . The compound consists of isolated (TTF+•)2 dimers, interspersed with the polyoxoanions. In agreement with this crystal structure the compound is a diamagnetic insulator.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 143
Copyright
Copyright © Materials Research Society 1990

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References

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