Evaluation of the potential effectiveness of ruthenium(II) complexes with 2,3-disubtituted pyrazino[2,3-f][1,10]phenanthroline anchors, R2ppl (R=CN, COOH, COOEt, OH) as sensitizers for solar cells
摘要:
The ligands of type pyrazino[2,34][1,10]phenanthroline, R(2)ppl, with R = CN, COOH, COOEt or OH, were synthesized and used as precursors for obtaining the corresponding series of complexes of type [Ru(dmbpy)(2)R(2)ppl](PF6)(2), where dmbpy is 4,4'-dimethyl-2,2'-bipyridine. The compounds were prepared, characterized, and studied by theoretical DFT calculations in order to evaluate their potentiality as dyes in photoelectrochemical cells.The electron acceptor capacity of the R(2)ppl ligands was evaluated by analyzing parameters such as electrophilicity and charge distribution on the reduced ligand. Additionally, the R substituents on R(2)ppl were evaluated as anchoring groups, by variables such as highest spin occupied molecular orbital (HSOMO). Finally, the I-T parameter was defined and calculated. This is related to the amount of energy that can be delivered to TiO2 from the acceptor anchoring ligand in the thexi state. According to this parameter, the [Ru(dmbpy)(2)(COOH)(2)ppl](PF6)(2) complex is predicted to have the best response, among the compounds of the series, when used as dye in a solar cell. (C) 2012 Elsevier Ltd. All rights reserved.
Evaluation of the potential effectiveness of ruthenium(II) complexes with 2,3-disubtituted pyrazino[2,3-f][1,10]phenanthroline anchors, R2ppl (R=CN, COOH, COOEt, OH) as sensitizers for solar cells
摘要:
The ligands of type pyrazino[2,34][1,10]phenanthroline, R(2)ppl, with R = CN, COOH, COOEt or OH, were synthesized and used as precursors for obtaining the corresponding series of complexes of type [Ru(dmbpy)(2)R(2)ppl](PF6)(2), where dmbpy is 4,4'-dimethyl-2,2'-bipyridine. The compounds were prepared, characterized, and studied by theoretical DFT calculations in order to evaluate their potentiality as dyes in photoelectrochemical cells.The electron acceptor capacity of the R(2)ppl ligands was evaluated by analyzing parameters such as electrophilicity and charge distribution on the reduced ligand. Additionally, the R substituents on R(2)ppl were evaluated as anchoring groups, by variables such as highest spin occupied molecular orbital (HSOMO). Finally, the I-T parameter was defined and calculated. This is related to the amount of energy that can be delivered to TiO2 from the acceptor anchoring ligand in the thexi state. According to this parameter, the [Ru(dmbpy)(2)(COOH)(2)ppl](PF6)(2) complex is predicted to have the best response, among the compounds of the series, when used as dye in a solar cell. (C) 2012 Elsevier Ltd. All rights reserved.
Burning Rate Performance Study of Ammonium Perchlorate Catalyzed by Heteroleptic Copper(I) Complexes with Pyrazino[2,3‐
<i>f</i>
][1,10]phenanthroline‐Based Ligands
作者:Manuel A. Escobar、Cesar Morales‐Verdejo、Juan Luis Arroyo、Paulina Dreyse、Iván González、Iván Brito、Desmond MacLeod‐Carey、David Moreno da Costa、Alan R. Cabrera
DOI:10.1002/ejic.202001092
日期:2021.5.7
heteroleptic Cu(I) complexes with pyrazino[2,3‐ f ][1,10]phenanthroline‐based ligands ( C1‐7 ) on the thermal decomposition of ammoniumperchlorate (AP). The complexes C2 and C4‐7 were synthesized and characterized by NMR, HRMS and, in the case of C7 , by X‐ray diffraction. The burningrate performance of C1‐7 on thermal decomposition of AP was studied by differential scanning calorimetry technique. The effect
These compounds exhibit high second-order nonlinear optics (NLO) activity, especially, those with F2-ppy ligands; this substituent modulates the charge transfer, optimizing the NLO response. The compounds also show blueshifted emissions, both in solution and as a solid film, which is desirable for use in light-emitting devices. This is the first use of the synthesized complexes for application in the