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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: DYES AND PIGMENTS; v. 159, p. 464-470, DEC 2018.
Web of Science Citations: 3
Abstract

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)

FAPESP's process: 13/24727-7 - New optical materials based on polynuclear Copper(I) halide cluster complexes immobilized in solid host matrices
Grantee:Leandro Piaggi Ravaro
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass
Grantee:Edgar Dutra Zanotto
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 16/17495-0 - New photonic materials based on Cu(I) complexes, upconverting nanoparticles and quantum dots
Grantee:Leandro Piaggi Ravaro
Support type: Scholarships abroad - Research Internship - Post-doctor