Zero in-Plane Thermal Expansion in Guest-Tunable 2D Coordination Polymers
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https://figshare.com/articles/dataset/Zero_in-Plane_Thermal_Expansion_in_Guest-Tunable_2D_Coordination_Polymers/4996295
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资源简介：
Zero
in-plane thermal expansion (TE) in a two-dimensional (2D) coordination
polymer is demonstrated. The combination of components that expand
and those that shrink into zigzag layers results in no net area change
in the 2D materials with temperature. Single crystals of [Mn(salen)]2[Mn(N)(CN)4(guest)] (salen = N,N′-ethylenebis(salicylideneaminato), guest = MeOH
and MeCN) were prepared, and variable-temperature single-crystal X-ray
structural analyses demonstrated that these compounds exhibited both
anisotropic positive and negative thermal expansion depending on the
guest species. The TE behavior results from distortions of the octahedral
coordination geometry of [Mn(salen)]+ units in the zigzag
layers. When both guests MeOH and MeCN were incorporated into one
material, [Mn(salen)]2[Mn(N)(CN)4(MeOH)0.25(MeCN)0.75], zero in-plane
TE resulted in a range of temperature between 380 and 440 K.
创建时间：
2017-05-11
