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A New Family of High Tc Molecule-Based Magnetic Networks: V[x-ClnPTCE]2·yCH2Cl2 (PTCE = Phenyltricyanoethylene)

Department of Chemistry, Virginia Tech, Blacksburg, VA 24061, USA
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Magnetochemistry 2019, 5(3), 44; https://doi.org/10.3390/magnetochemistry5030044
Received: 25 June 2019 / Revised: 19 July 2019 / Accepted: 19 July 2019 / Published: 1 August 2019
Using the structural and electronic tunability of molecules to control magnetism is a central challenge of inorganic chemistry. Herein, a ten-member family of the high-ordering temperature (Tc) molecule-based magnetic coordination networks of the form V[x-ClnPTCE]2·yCH2Cl2 (PTCE = phenyltricyanoethylene, y < 0.5) were synthesized and characterized, where x is (are) the position(s) and n is the number of chlorine substitutions on the phenyl ring. These chlorophenyltricyanoethelenes are tunable analogs of the more commonly investigated tetracyanoethylene (TCNE). Varying the number and position of chlorine substitution around the phenyl ring engendered a family of network solids with significantly different magnetic ordering temperatures ranging from 146 to 285 K. The Tcs of these ferrimagnets were rationalized with the aid of cyclic voltammetry and Density Functional Theory (DFT) calculations. View Full-Text
Keywords: molecule-based ferrimagnetism molecule-based ferrimagnetism
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Tatum, D.S.; Zadrozny, J.M.; Yee, G.T. A New Family of High Tc Molecule-Based Magnetic Networks: V[x-ClnPTCE]2·yCH2Cl2 (PTCE = Phenyltricyanoethylene). Magnetochemistry 2019, 5, 44.

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