title: Enantioselective Guest Effect on the Spin State of a Chiral Coordination Framework.
abstract: The diversity of spin crossover (SCO) complexes that, on the one hand, display variable temperature, abruptness and hysteresis of the spin transition, and on the other hand, are spin-sensitive to the various guest molecules, makes these materials unique for the detection of different organic and inorganic compounds. We have developed a homochiral SCO coordination polymer with a spin transition sensitive to the inclusion of the guest 2-butanol, and these solvates with (R)- and (S)-alcohols demonstrate different SCO behaviours depending on the chirality of the organic analyte. A stereoselective response to the guest inclusion is detected as a shift in the temperature of the transition both from dia- to para- and from para- to diamagnetic states in heating and cooling modes respectively. Furthermore, the Mössbauer spectroscopy directly visualizes how the metallic centres in a chiral coordination framework differently sense the interaction with guests of different chiralities.
authors.affiliation: Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601 (Ukraine). illia.guralskyi@univ.kiev.ua.|Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Staudingerweg 9, Mainz 55099 (Germany). illia.guralskyi@univ.kiev.ua.
authors.forename: Il'ya A
authors.initials: IA
authors.lastname: Gural'skiy
authors.affiliation: Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601 (Ukraine).
authors.forename: Olesia I
authors.initials: OI
authors.lastname: Kucheriv
authors.affiliation: Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601 (Ukraine).|Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Staudingerweg 9, Mainz 55099 (Germany).
authors.forename: Sergii I
authors.initials: SI
authors.lastname: Shylin
authors.affiliation: Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Staudingerweg 9, Mainz 55099 (Germany).
authors.forename: Vadim
authors.initials: V
authors.lastname: Ksenofontov
authors.affiliation: L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prospekt Nauky 31, Kyiv 01601 (Ukraine).
authors.forename: Ruslan A
authors.initials: RA
authors.lastname: Polunin
authors.affiliation: Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601 (Ukraine).
authors.forename: Igor O
authors.initials: IO
authors.lastname: Fritsky
keywords: chirality; coordination frameworks; guest effect; spin crossover; stereoselectivity