0000000001302207
AUTHOR
Mannan Seuleiman
Photomagnetic effect in a cyanide-bridged mixed-valence {FeII2FeIII2} molecular square
The self-assembly of [Fe(III)(Tp)(CN)(3)](-) and [Fe(II)(bik)(2)(S)(2)](2+) affords the cyanide-bridged mixed valence {Fe(III)(2)Fe(II)(2)}(2+) molecular square, which exhibits a photomagnetic effect under laser light irradiation at low temperature and also shows thermal spin-state conversion near ambient temperature.
Dimensionality Switching Through a Thermally Induced Reversible Single-Crystal-to-Single-Crystal Phase Transition in a Cyanide Complex
International audience; The heterometallic hexanuclear cyanide-bridged complex {[Mn(bpym)(H(2)O)](2)[Fe(HB(pz)(3))(CN)(3)](4)} (1), its C(15)N and D(2)O enriched forms {[Mn(bpym)(H(2)O)](2)[Fe(HB(pz)(3))(C(15)N)(3)](4)} (2) and {[Mn(bpym)(D(2)O)](2)[Fe(HB(pz)(3))(CN)(3)](4)} (3), and the hexanuclear derivative complex {[Mn(bpym)(H(2)O)](2)[Fe(B(pz)(4))(CN)(3)](4)}*4H(2)O (4) [bpym = 2,2'-bipyrimidine, HB(pz)(3)(-) = hydrotris(1-pyrazolyl)borate, B(pz)(4)(-) = tetra(1-pyrazolyl)borate] have been synthesized. Their structures have been determined through single-crystal X-ray crystallography at different temperatures. Whereas 3 and 4 maintain a discrete hexanuclear motif during the entire temp…
On/Off Photoswitching in a Cyanide-Bridged {Fe2Co2} Magnetic Molecular Square
International audience; A repeatable bidirectional paramagnetic ↔ diamagnetic photomagnetic effect has been observed in the cyanide-bridged Fe-Co square complex {[Fe{B(pz)(4)}(CN)(3)](2)[Co(bik)(2)](2)}(ClO(4))(2)*3H(2)O [B(pz)(4) = tetrapyrazolylborate, bik = bis(1-methylimidazol-2-yl)ketone]. Magnetic measurements and low-temperature single-crystal X-ray diffraction experiments have shown that a complete electron transfer from the diamagnetic Fe(II)-Co(III) state to the paramagnetic Fe(III)-Co(II) metastable state is induced by 808 nm laser light irradiation, whereas the diamagnetic state is recovered in an almost quantitative yield under irradiation at 532 nm.
[FeIILSCoIIILS]2⇔ [FeIIILSCoIIHS]2 photoinduced conversion in a cyanide-bridged heterobimetallic molecular square
The self-assembly of [Fe(III){B(pz)(4)}(CN)(3)](-) and [Co(II)(bik)(2)(S)(2)](2+) affords the diamagnetic cyanide-bridged [Fe(II)(LS)Co(III)(LS)](2) molecular square which is converted into the corresponding magnetic [Fe(III)(LS)Co(II)(HS)](2) species under light irradiation at relatively low temperatures.
CCDC 883430: Experimental Crystal Structure Determination
Related Article: Abhishake Mondal, Yanling Li, Mannan Seuleiman, Miguel Julve, Loic Toupet, Marylise Buron-Le Cointe, Rodrigue Lescouezec|2013|J.Am.Chem.Soc.|135|1653|doi:10.1021/ja3087467
CCDC 883431: Experimental Crystal Structure Determination
Related Article: Abhishake Mondal, Yanling Li, Mannan Seuleiman, Miguel Julve, Loic Toupet, Marylise Buron-Le Cointe, Rodrigue Lescouezec|2013|J.Am.Chem.Soc.|135|1653|doi:10.1021/ja3087467
CCDC 912843: Experimental Crystal Structure Determination
Related Article: Abhishake Mondal, Yanling Li, Mannan Seuleiman, Miguel Julve, Loic Toupet, Marylise Buron-Le Cointe, Rodrigue Lescouezec|2013|J.Am.Chem.Soc.|135|1653|doi:10.1021/ja3087467
CCDC 883429: Experimental Crystal Structure Determination
Related Article: Abhishake Mondal, Yanling Li, Mannan Seuleiman, Miguel Julve, Loic Toupet, Marylise Buron-Le Cointe, Rodrigue Lescouezec|2013|J.Am.Chem.Soc.|135|1653|doi:10.1021/ja3087467