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Ionic compound containing iron phthalocyanine (Fe I Pc) − anions and (C 70 − ) 2 dimers. Optical and magnetic properties of (Fe I Pc) − in the solid state

Ionic compound containing iron phthalocyanine (Fe I Pc) − anions and (C 70 − ) 2 dimers. Optical... Ionic compounds containing the anion of iron phthalocyanine (Fe I Pc) − , {(Fe I Pc) − }·(cryptand(2,2,2)·(Na + ))·(C 6 H 4 Cl 2 ) ( 1 ), and the fullerene C 70 − and Fe I Pc − anions, (C 70 − ) 2 ·{(Fe I Pc) − } 6 ·(cryptand(2,2,2)·(Na + )) 8 ·(C 6 H 4 Cl 2 ) 8.65 ·(C 6 H 14 ) 0.35 ( 2 ), were obtained as single crystals. Their crystal structures and optical and magnetic properties were analyzed. Spectra of 1 and 2 manifest intense bands in visible-NIR range at 820, 690, 555, 528, 449, 400 and 316 nm attributed to (Fe I Pc) − . The four-coordinate (Fe I Pc) − anions show an EPR signal with perpendicular and parallel components at g ⊥ = 2.487 and g ‖ = 2.353 in 1 and g ⊥ = 2.328 and g ‖ = 2.230 in 2 . According to magnetic measurements the (Fe I Pc) − anions have low spin ( S = 1/2) state indicating d 7 configuration for the Fe I atoms with the odd electron on the d z 2 orbital. Fullerene anions form singly bonded (C 70 − ) 2 dimers in 2 , the shape of which efficiently fitted with the large planar phthalocyanine anions to be surrounded completely by eight (Fe I Pc) − anions. The (C 70 − ) 2 dimers are diamagnetic and EPR silent up to 350 K. Both complexes contain channels formed by four (Fe I Pc) − planes in 1 or four (Fe I Pc) − planes and two (C 70 − ) 2 dimers in 2 . The channels are occupied by double chains of alternating cryptand(2,2,2)·(Na + ) cations and solvent C 6 H 4 Cl 2 molecules. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Dalton Transactions Royal Society of Chemistry

Ionic compound containing iron phthalocyanine (Fe I Pc) − anions and (C 70 − ) 2 dimers. Optical and magnetic properties of (Fe I Pc) − in the solid state

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References (30)

Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
1477-9226
eISSN
1477-9234
DOI
10.1039/c2dt31587d
pmid
23033119
Publisher site
See Article on Publisher Site

Abstract

Ionic compounds containing the anion of iron phthalocyanine (Fe I Pc) − , {(Fe I Pc) − }·(cryptand(2,2,2)·(Na + ))·(C 6 H 4 Cl 2 ) ( 1 ), and the fullerene C 70 − and Fe I Pc − anions, (C 70 − ) 2 ·{(Fe I Pc) − } 6 ·(cryptand(2,2,2)·(Na + )) 8 ·(C 6 H 4 Cl 2 ) 8.65 ·(C 6 H 14 ) 0.35 ( 2 ), were obtained as single crystals. Their crystal structures and optical and magnetic properties were analyzed. Spectra of 1 and 2 manifest intense bands in visible-NIR range at 820, 690, 555, 528, 449, 400 and 316 nm attributed to (Fe I Pc) − . The four-coordinate (Fe I Pc) − anions show an EPR signal with perpendicular and parallel components at g ⊥ = 2.487 and g ‖ = 2.353 in 1 and g ⊥ = 2.328 and g ‖ = 2.230 in 2 . According to magnetic measurements the (Fe I Pc) − anions have low spin ( S = 1/2) state indicating d 7 configuration for the Fe I atoms with the odd electron on the d z 2 orbital. Fullerene anions form singly bonded (C 70 − ) 2 dimers in 2 , the shape of which efficiently fitted with the large planar phthalocyanine anions to be surrounded completely by eight (Fe I Pc) − anions. The (C 70 − ) 2 dimers are diamagnetic and EPR silent up to 350 K. Both complexes contain channels formed by four (Fe I Pc) − planes in 1 or four (Fe I Pc) − planes and two (C 70 − ) 2 dimers in 2 . The channels are occupied by double chains of alternating cryptand(2,2,2)·(Na + ) cations and solvent C 6 H 4 Cl 2 molecules.

Journal

Dalton Transactions – Royal Society of Chemistry

Published: Sep 10, 2012

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