New emissive mononuclear copper (I) complex: Structural and photophysical characterization focusing on solvatochromism, rigidochromism and oxygen sensing in mesoporous solid matrix

Autor(es)

Ravaro, Leandro P. ^{[1, 2]} ; Mafud, Ana C. ^[2] ; Li, Zhi ^[1] ; Reinheimer, Eric ^[3] ; Simone, Carlos A. ^[2] ; Mascarenhas, Yvonne P. ^[2] ; Ford, Peter C. ^[1] ; de Camargo, Andrea S. S. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Calif Santa Barbara, Santa Barbara, CA 93106 - USA

^[2] Univ Sao Paulo, Sao Carlos Inst Phys, POB 369, BR-13560970 Sao Carlos, SP - Brazil

^[3] Rigaku Amer, The Woodlands, TX - USA

• Tipo de documento: Artigo Científico
• Fonte: DYES AND PIGMENTS; v. 159, p. 464-470, DEC 2018.
• Citações Web of Science: 4

Resumo

We report the structural and photophysical property analyses of a new emissive copper (I) complex CuI(PPh3) (L) (1, L = 4,4'-dimethoxy-2,2'-bipyridine) which demonstrates solvatochromism. When recrystallized from acetonitrile, the originally orange color of 1 becomes yellow and demonstrates a blue-shifted, broad emission spectrum. This process is reversed when the yellow solid is redissolved in dichloromethane and recrystallized. The lattice parameters and angles found were alpha = 17.769 angstrom, beta = 114.05 degrees and alpha = 11.555 angstrom, angle beta = 92.70 degrees for the orange and yellow forms of 1, respectively, and there are notable structure differences for CuI (PPh3) (L) in these two solids. When loaded into a mesoporous silica, the emission blue shift becomes greater, indicating a strong rigidochromic effect at room temperature. The emission from such copper complex loaded mesoporous silica matrix is quenched by oxygen and this quenching has been quantified. (AU)

• Processo FAPESP: 16/17495-0 - Novos materiais fotônicos baseados em complexos de Cu(I), nanopartículas conversoras ascedentes de energia e pontos quânticos
• Beneficiário: Leandro Piaggi Ravaro
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros
• Beneficiário: Edgar Dutra Zanotto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 13/24727-7 - Novos materiais ópticos baseados em Complexos Polinucleares de Clusters de Haleto de Cobre(I) imobilizados em matrizes hospedeiras sólidas
• Beneficiário: Leandro Piaggi Ravaro
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado