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新型含4,4'-位一系列供电子和吸电子取代基的2,2'-联吡啶钌(II)配合物：合成、表征及其作为基于氧化锌纳米线的太阳能电池敏化剂的应用

Novel Heteroleptic Ruthenium(II) Complexes with 2,2'- Bipyridines Containing a Series of Electron-Donor and Electron-Acceptor Substituents in 4,4'-Positions: Syntheses, Characterization, and Application as Sensitizers for ZnO Nanowire-Based Solar Cells.

作者信息

Salomón Fernando F, Vega Nadia C, Parella Teodor, Morán Vieyra Faustino Eduardo, Borsarelli Claudio D, Longo Claudia, Cattaneo Mauricio, Katz Néstor E

机构信息

INQUINOA (UNT- CONICET), Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, (T4000INI) San Miguel de Tucumán, Argentina.

Servei de RMN, Universitat Autonóma de Barcelona, Bellaterra E-08193, Barcelona, Spain.

出版信息

ACS Omega. 2020 Apr 2;5(14):8097-8107. doi: 10.1021/acsomega.0c00243. eCollection 2020 Apr 14.

DOI:10.1021/acsomega.0c00243
PMID:32309719
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7161030/
Abstract

A novel series of complexes of the formula Ru(4,4'-X-bpy)(Mebpy-CN) (X = -CH, -OCH, -N(CH); Mebpy-CN = 4-methyl-2,2'-bipyridine-4'-carbonitrile) have been synthesized and characterized by spectroscopic, electrochemical, and photophysical techniques. Inclusion of the electron-withdrawing substituent -CN at one bpy ligand and different electron-donor groups -X at the 4,4'-positions of the other two bpy ligands produce a fine tuning of physicochemical properties. Redox potentials, electronic absorption maxima, and emission maxima correlate well with Hammett's σ parameters of X. Quantum mechanical calculations are consistent with experimental data. All the complexes can be anchored through the nitrile moiety of Mebpy-CN over ZnO nanowires in dye-sensitized solar cells that exhibit an improvement of light to electrical energy conversion efficiency as the electronic asymmetry increases in the series.

摘要

已合成了一系列通式为Ru(4,4'-X-联吡啶)(甲基联吡啶-腈)（X = -CH、-OCH、-N(CH)；甲基联吡啶-腈 = 4-甲基-2,2'-联吡啶-4'-腈）的新型配合物，并通过光谱、电化学和光物理技术对其进行了表征。在一个联吡啶配体上引入吸电子取代基-CN，在另外两个联吡啶配体的4,4'-位引入不同的给电子基团-X，可对物理化学性质进行微调。氧化还原电位、电子吸收最大值和发射最大值与X的哈米特σ参数有很好的相关性。量子力学计算与实验数据一致。在染料敏化太阳能电池中，所有配合物都可以通过甲基联吡啶-腈的腈基部分锚定在ZnO纳米线上，随着该系列中电子不对称性的增加，光到电能的转换效率有所提高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/03ec3bcecb37/ao0c00243_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/57be7cee9837/ao0c00243_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/133bf4c0347e/ao0c00243_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/f24b0e75475b/ao0c00243_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/304bb4f5f325/ao0c00243_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/3bb5261aa401/ao0c00243_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/deea13219bc0/ao0c00243_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/a676901685bc/ao0c00243_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/1683b125f3d2/ao0c00243_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/c31211d2d40f/ao0c00243_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/03ec3bcecb37/ao0c00243_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/57be7cee9837/ao0c00243_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/133bf4c0347e/ao0c00243_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/f24b0e75475b/ao0c00243_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/304bb4f5f325/ao0c00243_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/3bb5261aa401/ao0c00243_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/deea13219bc0/ao0c00243_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/a676901685bc/ao0c00243_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/1683b125f3d2/ao0c00243_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/c31211d2d40f/ao0c00243_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f373/7161030/03ec3bcecb37/ao0c00243_0003.jpg

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