Lan, W.; Valverde-Muñoz, F.; Hao, X.; Dou, Y.; Muñoz Roca, MDC.; Zhou, Z.; Liu, H.... (2019). An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral [Hg(SeCN)4]2- building block. Chemical Communications. 55(32):4607-4610. https://doi.org/10.1039/c9cc01291e
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/144588
Title:
|
An unprecedented hetero-bimetallic three-dimensional spin crossover coordination polymer based on the tetrahedral [Hg(SeCN)4]2- building block
|
Author:
|
Lan, W.
Valverde-Muñoz, F.J.
Hao, X.
Dou, Y.
Muñoz Roca, María Del Carmen
Zhou, Z.
Liu, H.
Liu, Q.
Real, J.A.
Zhang, D.
|
UPV Unit:
|
Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
|
Issued date:
|
|
Abstract:
|
[EN] 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 Hg-II-Fe-II ...[+]
[EN] 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 Hg-II-Fe-II 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 T-1/2 = 107.8 K and complete photoconversion of the low spin state into a metastable high-spin state (LIESST effect) with T-LIESST = 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.
[-]
|
Subjects:
|
Magnetic-Properties
,
X-Ray
,
Spectroscopic investigations
,
Polynuclear complexes
,
Hg(Scn)(4)(2-) Unit
,
Crystal-Structure
,
Transition
,
Pressure
,
Behavior
,
State
|
Copyrigths:
|
Cerrado |
Source:
|
Chemical Communications. (issn:
1359-7345
)
|
DOI:
|
10.1039/c9cc01291e
|
Publisher:
|
The Royal Society of Chemistry
|
Publisher version:
|
https://doi.org/10.1039/c9cc01291e
|
Project ID:
|
NSFC/21773006
GV/PROMETEO2016/147
MINECO-FEDER/CTQ2016-78341-P
MINECO-FEDER/MDM-2015-0538
NSFC/21671121
|
Thanks:
|
We are very thankful for the support from the National Natural Science Foundation of China (21671121 and 21773006) the Spanish Ministerio de Economiay Competitividad (MINECO) and FEDER funds (CTQ2016-78341-P and Unidad de ...[+]
We are very thankful for the support from the National Natural Science Foundation of China (21671121 and 21773006) the Spanish Ministerio de Economiay Competitividad (MINECO) and FEDER funds (CTQ2016-78341-P and Unidad de Excelencia Maria de Maeztu MDM-2015-0538), and Generalitat Valenciana (PROMETEO/2016/147). F. J. V. M. thanks MINECO for a predoctoral FPI grant.
[-]
|
Type:
|
Artículo
|