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Enriquez-Cabrera A, Rapakousiou A, Piedrahita Bello M, Molnár G, Salmon L, Bousseksou A. Spin crossover polymer composites, polymers and related soft materials. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213396] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Daro N, Moulet L, Penin N, Paradis N, Létard JF, Lebraud E, Buffière S, Chastanet G, Guionneau P. Spray-Drying to Get Spin-Crossover Materials. MATERIALS 2017; 10:ma10010060. [PMID: 28772418 PMCID: PMC5344545 DOI: 10.3390/ma10010060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/03/2017] [Accepted: 01/05/2017] [Indexed: 11/17/2022]
Abstract
Spin-crossover (SCO) triazole-based coordination polymers can be synthesized by micelle techniques, which almost always lead to rod-shaped nanoparticles. In order to notably reach new morphologies, we explore here the potentiality of the spray-drying (SD) method to get SCO materials. Three SCO coordination polymers and a mononuclear complex are investigated. In all cases, the SD method obtains particles definitely showing SCO. The features of the latter are yet always different from those of the referenced materials, in the sense that SCO is more gradual and incomplete, in adequacy with the poor crystallinity of the powders obtained by SD. In the case of coordination polymers, the particles are preferentially spherical. Indications of possible polymorphism and/or new materials induced by the use of the SD method are evidenced. In the case of the mononuclear complex, the SD method has allowed reproducing, in a quick and easy way, the well-known bulk compound. This exploratory work demonstrates the relevance of the concept and opens the way to a systematic scrutiny of all the experimental parameters to tune the size, morphology, and properties of the SD-synthesized SCO particles.
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Affiliation(s)
- Nathalie Daro
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Lucie Moulet
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Nicolas Penin
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Nicolas Paradis
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Jean-François Létard
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Eric Lebraud
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Sonia Buffière
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Guillaume Chastanet
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
| | - Philippe Guionneau
- CNRS, University of Bordeaux, ICMCB, UPR9048, 87 Avenue du Docteur Schweitzer, F-33600 Pessac, France.
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