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Title:		Multistimuli Response Micro- and Nanolayers of a Coordination Polymer Based on Cu(2) I(2) Chains Linked by 2-Aminopyrazine
Author(s):		Conesa-Egea J; Gallardo-Martinez J; Delgado S; Martinez JI; Gonzalez-Platas J; Fernandez-Moreira V; Rodriguez-Mendoza UR; Ocon P; Zamora F; Amo-Ochoa P;
Address:		"Departamento de Quimica Inorganica, Universidad Autonoma de Madrid, Madrid, 28049, Spain. Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autonoma de Madrid, Madrid, 28049, Spain. Departamento de Nanoestructuras, Superficies, Recubrimientos y Astrofisica Molecular, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), Madrid, 28049, Spain. Departamento de Fisica, Universidad de La Laguna, Avda. Astrofisico Fco. Sanchez s/n, La Laguna, Tenerife, E-38204, Spain. Servicio de Difraccion de Rayos X (SIDIX), Departamento de Fisica, Universidad de La Laguna, Avda. Astrofisico Fco. Sanchez s/n, La Laguna, Tenerife, E-38204, Spain. Departamento de Quimica Inorganica, Instituto de Sintesis Quimica y Catalisis Homogenea (ISQCH), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain. Instituto de Materiales y Nanotecnologia (IMN), Departamento de Fisica, Universidad de La Laguna, Avda. Astrofisico Fco. Sanchez s/n, La Laguna, Tenerife, E-38204, Spain. Departamento de Quimica Fisica Aplicada, Universidad Autonoma de Madrid, Madrid, 28049, Spain. Condensed Matter Physics Center (IFIMAC), Universidad Autonoma de Madrid, Madrid, 28049, Spain"
Journal Title:		Small
Year:		2017
Volume:		20170710
Issue:		33
Page Number:		-
DOI:		10.1002/smll.201700965
ISSN/ISBN:		1613-6829 (Electronic) 1613-6810 (Print) 1613-6810 (Linking)
Abstract:		"A nonporous laminar coordination polymer of formula [Cu(2) I(2) (2-aminopyrazine)](n) is prepared by direct reaction between CuI and 2-aminopyrazine, two industrially available building blocks. The fine tuning of the reaction conditions allows obtaining [Cu(2) I(2) (2-aminopyrazine)](n) in micrometric and nanometric sizes with same structure and composition. Interestingly, both materials show similar reversible thermo- and pressure-luminescent response as well as reversible electrical response to volatile organic solvents such as acetic acid. X-ray diffraction studies under different conditions, temperatures and pressures, in combination with theoretical calculations allow rationalizing the physical properties of this compound and its changes under physical stimuli. Thus, the emission dramatically increases when lowering the temperature, while an enhancement of the pressure produces a decrease in the emission intensity. These observations emerge as a direct consequence of the high structural flexibility of the Cu(2) I(2) chains which undergo a contraction in Cu?╖?Cu distances as far as temperature decreases or pressure increases. However, the strong structural changes observed under high pressure lead to an unexpected effect that produces a less effective Cu?╖?Cu orbital overlapping that justifies the decrease in the intensity emission. This work shows the high potential of materials based on Cu(2) I(2) chains for new applications"
Keywords:		coordination polymers multifunctional materials nanomaterials stimuli response materials;
Notes:		"PubMed-not-MEDLINEConesa-Egea, J Gallardo-Martinez, J Delgado, S Martinez, J I Gonzalez-Platas, J Fernandez-Moreira, V Rodriguez-Mendoza, U R Ocon, P Zamora, F Amo-Ochoa, P eng 610256/ERC_/European Research Council/International Research Support, Non-U.S. Gov't Germany 2017/07/12 Small. 2017 Sep; 13(33):10.1002/smll.201700965. doi: 10.1002/smll.201700965. Epub 2017 Jul 10"