Results 211 to 220 of about 9,526 (252)

Polymorphism in spin-crossover systems

Chem. Soc. Rev., 2012
The occurrence of spin-crossover (SCO) highly depends on external influences, i.e. temperature, pressure, light irradiation or magnetic field, this electronic switching phenomenon is accompanied by drastic changes in magnetic and optical properties, dielectric constants, colour and structures.
Tao, Jun, Wei, Rong-Jia, Huang, Rong-Bin, Zheng, Lan-Sun   +3 more
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Spin crossover in polyaniline

Russian Chemical Bulletin, 2007
Solutions of the basic form of polyaniline in m-cresol were studied by ESR and optical spectroscopy in the visible region. m-Cresol can slowly (during one month) protonate polyaniline. For the first time characteristic features of spin crossover were found: sharp changes in the magnetic susceptibility and the ESR line width of polyaniline at ∼200 and ...
A. V. Kulikov, A. S. Komissarova, A. F. Shestakov, L. S. Fokeeva   +3 more
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Electronic Spin Crossover

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
P. Gütlich, H.A. Goodwin
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Spin crossover in metallomesogens

Coordination Chemistry Reviews, 2009
Abstract In this review article are illustrated the strategies developed in order to achieve interplay/synergy between spin transition and liquid crystal transition. The synthesised Fe(II) metallomesogens exhibit different types of interplay between both phase transitions. A classification according to the analysis of the magnetic and structural data
A.B. Gaspar, M. Seredyuk, P. Gütlich
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Macrocycle-Based Spin-Crossover Materials

Inorganic Chemistry, 2009
New iron(II) complexes of formula [Fe(L1)](BF(4))(2) (1) and [Fe(L2)](BF(4))(2) x H(2)O (2) (L1 = 1,7-bis(2'-pyridylmethyl)-1,4,7,10-tetraazacyclododecane; L2 = 1,8-bis(2'-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane) have been synthesized and characterized by infrared spectroscopy, variable-temperature single-crystal X-ray diffraction, and ...
El Hajj, Fatima, Sebki, Ghania, Patinec, Véronique, Marchivie, Mathieu, Triki, Smail, Handel, Henri, Yefsah, Said, Tripier, Raphaël, Gómez-García, Carlos J., Coronado, Eugenio   +9 more
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Spin crossover in soft matter

Coordination Chemistry Reviews, 2014
Abstract This review article is devoted to the study of the spin crossover phenomenon in soft matter. Spin crossover compounds, though known for decades, bear the potential for practical applications in switching, sensing and display devices. Having arrived at a reasonable understanding of the spin transition process in solid and liquid states, one ...
Ana B Gaspar, Maksym Seredyuk
exaly   +2 more sources

Nanoparticles of iron(ii) spin-crossover

Chemical Communications, 2008
We report the synthesis of spin crossover 69 nm spherical nanoparticles of [Fe(NH2-trz)3](Br)2.3H2O.0.03(surfactant) (NH2trz = 4-amino-1,2,4-triazole, surfactant = Lauropal), prepared by the reverse micelle technique, which exhibit at room temperature a thermal hysteresis characterized by magnetic, diffuse reflectivity and Raman studies.
Thibaut, Forestier, Stéphane, Mornet, Nathalie, Daro, Taishi, Nishihara, Shin-ichiro, Mouri, Koichiro, Tanaka, Olivier, Fouché, Eric, Freysz, Jean-François, Létard   +8 more
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Light-induced spin-crossover magnet

Nature Chemistry, 2011
The light-induced phase transition between the low-spin (LS) and high-spin (HS) states of some transition-metal ions has been extensively studied in the fields of chemistry and materials science. In a crystalline extended system, magnetically ordering the HS sites of such transition-metal ions by irradiation should lead to spontaneous magnetization ...
Shin-Ichi, Ohkoshi, Kenta, Imoto, Yoshihide, Tsunobuchi, Shinjiro, Takano, Hiroko, Tokoro   +4 more
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Spin Crossover in a Catenane Supramolecular System

Science, 1995
The compound [Fe(tvp) 2 (NCS) 2 ] ⋅ CH 3 OH, where tvp is 1,2-di-(4-pyridyl)-ethylene, has been synthesized and characterized by x-ray single-crystal diffraction. It consists of two perpendicular, two-dimensional networks organized in parallel stacks of sheets made up ...
J A, Real, E, Andrés, M C, Muñoz, M, Julve, T, Granier, A, Bousseksou, F, Varret   +6 more
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Inducing hysteretic spin crossover in solution

Dalton Transactions, 2012
A hysteretic spin transition is induced in a solution assembly of a mononuclear Fe(III) amphiphilic complex which exhibits only gradual spin crossover in the solid state. The hysteretic behavior is dependent on dynamic solution assembly and removal of solvent causes reversion to the original bulk solid magnetic response.
Paulo N, Martinho, Yannick, Ortin, Brendan, Gildea, Claudio, Gandolfi, George, McKerr, Barry, O'Hagan, Martin, Albrecht, Grace G, Morgan   +7 more
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