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Updated: Jan 27, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids
Published on: August 23, 2018
An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral
Wenlong Lan1, Francisco Javier Valverde-Muñoz, Xiaoyun Hao
1College of Chemical and Chemical Engineering, Shandong University of Technology, Zibo 255049, P. R. China. dpzhang73@126.com.
Abstract:
Self-assembly of octahedral FeII ions, trans-1,2-bis(4-pyridyl)ethane (bpe) bridging ligands and [Hg(XCN)4]2- (X = S (1), Se (2)) tetrahedral building blocks has afforded a new type of hetero-bimetallic HgII-FeII spin-crossover (SCO) 3D 6,4-connected coordination polymer (CP) formulated {Fe(bpe)[Hg(XCN)4]}n. For X = S (1), the ligand field is close to the crossing point but 1 remains paramagnetic over all temperatures. In contrast, for X = Se (2) the complex undergoes complete thermal induced SCO behaviour centred at T1/2 = 107.8 K and complete photoconversion of the low spin state into a metastable high-spin state (LIESST effect) with TLIESST = 66.7 K. The current results provide a new route for the design and synthesis of new SCO functional materials with non-Hoffmann-type structures.
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