Luminescent vapochromic single crystal to single crystal transition in one-dimensional coordination polymer featuring the first Cu(i) dimer bridged by an aqua ligand

Autor: Sebastien Kerneis, Karine Costuas, Ali Moustafa Khalil, Chendong Xu, Guillaume Calvez, Christophe Lescop, Sloane Evariste
Přispěvatelé: Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ANR (P-OPTOELECTR-MOLMAT) French National Research Agency (ANR), French Research MinistryMinistry of Research, France, CNRSCentre National de la Recherche Scientifique (CNRS), Alexander von Humboldt FoundationAlexander von Humboldt Foundation, Chinese Scholarship CouncilChina Scholarship Council, GENCI-CINES/IDRIS [A0060800649, A0080800649], ANR-12-IS07-0002,P-OPTOELECTR-MOLMAT,Matériaux pi-conjugués à base de phosphore : conception, synthèse et assemblages supramoléculaires pour l'émission et la collecte de lumière, la communication électronique et le transport de charge.(2012), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Inorganic Chemistry Frontiers
Inorganic Chemistry Frontiers, 2020, 7 (18), pp.3402-3411. ⟨10.1039/d0qi00691b⟩
Inorganic Chemistry Frontiers, Royal Society of Chemistry, 2020, 7 (18), pp.3402-3411. ⟨10.1039/d0qi00691b⟩
ISSN: 2052-1553
DOI: 10.1039/d0qi00691b⟩
Popis: International audience; The reaction of the pre-assembled bimetallic Cu(i) [Cu-2(mu(2)-dppm)(2)](2+) fragment with the ligand 1,4-dicyanobenzeneB(0)in non-distilled CH(2)Cl(2)allowed the characterisation of an unexpected one-dimensional coordination polymerD, while no reaction occurred when dry CH(2)Cl(2)was used as the solvent. The X-ray crystal structure resolution performed on air-stable single crystals ofDrevealed that this coordination polymer contained the first reported bridging aqua ligand coordinated on Cu(i) bimetallic units connected byB(0)ligands within zig-zag chains. Consequently,Dwas obtained in very good yield when the synthesis was conducted in dry CH2Cl2, in which water was added as a reactant in excess. In the solid state at room temperature under UV lamp excitation,Dpresented blue-cyan eye-perceived luminescence that contrasted with the green-yellow eye-perceived luminescence emitted by single crystals ofDin the crystallisation solution. Related to this property, reversible luminescent vapochromic behaviour was observed upon the exposure of dry single crystals ofDto vapors of CH2Cl2, EtOH, CH(3)NO(2)and THF solvents. The X-ray crystal structure resolution analysis revealed that this vapochromic response occursviasingle crystal to single crystal transitions, along which the volatile solvent molecules are taken up in the very low porous dry single crystals ofD, leading to the formation of one-dimensional channels of included solvent molecules, which are mobile in the crystalline solid at room temperature. The detailed temperature -dependent photophysical studies suggest that this mobility impacts the relaxation processes within these molecular solids, resulting in luminescence vapochromic effects. The results also highlight the complexity of the relaxation processes that can take place in these heteroleptic polymetallic Cu(i) supramolecular assemblies, which are based on highly easy, affordable and quick synthetic procedures.
Databáze: OpenAIRE
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