Observation of the structural consequences of a reversible S = 3/2 and S = 1/2 spin crossover in the single crystal

Inorganic Chemistry
Y OhgoMikio Nakamura

Abstract

Highly saddle shaped iron(III) porphyrin complex 1 showing a novel spin crossover process between the S = 3/2 and S = 1/2 has been crystallographically analyzed at 298, 180, and 80 K. As the temperature is lowered, the lattice contraction has occurred specifically along the b-axis. Correspondingly, the iron-pyridine bonds, which tilt slightly from the b-axis, have decreased by 7.3%. In contrast, the lattice contractions along the a- and c-axes are much smaller and the iron-porphyrin bonds, which almost coincide with the a- and c-axes, have shown much smaller contraction, ca. 2.2%. The large contraction of the specific bonds caused by packing force raises the energy level of the d(z)2 orbital and induces the spin transition. The detailed structural and lattice changes in the single crystal, which may be regarded as a superstructure parallel to a protein matrix, have been clarified.

References

Aug 4, 1995·Journal of Molecular Biology·E H HarutyunyanJ C Wilson

❮ Previous
Next ❯

Citations

Feb 18, 2009·Angewandte Chemie·Mikio Nakamura
Jan 5, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Musa S ShongweMasahiro Mikuriya
Jan 31, 2014·Chemistry : a European Journal·Dimitri SakowMartin Bröring
Feb 23, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Rajat SahaGolam Mostafa
Apr 13, 2011·Chemical Society Reviews·Malcolm A Halcrow
Jun 15, 2006·Chemical Reviews·Raymond WeissJames Terner
Nov 15, 2002·Journal of the American Chemical Society·Mary K EllisonW Robert Scheidt

❮ Previous
Next ❯

Related Feeds

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.