当前位置: X-MOL 学术Organometallics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Linear and Third-Order Nonlinear Optical Properties of Fe(η5-C5Me5)(κ2-dppe)- and trans-Ru(κ2-dppe)2-Alkynyl Complexes Containing 2-Fluorenyl End Groups
Organometallics ( IF 2.5 ) Pub Date : 2018-06-29 , DOI: 10.1021/acs.organomet.8b00229
Amédée Triadon 1 , Guillaume Grelaud 1, 2 , Nicolas Richy 1 , Olivier Mongin 1 , Graeme J. Moxey 2 , Isabelle M. Dixon 3 , Xinwei Yang 2 , Genmiao Wang 2 , Adam Barlow 2 , Joelle Rault-Berthelot 1 , Marie P. Cifuentes 2 , Mark G. Humphrey 2 , Frédéric Paul 1
Affiliation  

The synthesis and characterization of a set of redox-active iron and ruthenium alkynyl complexes of general formula [[M]Cl(1–p){C≡CC6H5–m(C≡CFlu)m}(1+p)][PF6]n are reported (n = 0–1; m = 1–2; [M] = [Fe(η5-C5Me5)(κ2-dppe)] and p = 1 or [M] = [trans-Ru(κ2-dppe)2] and p = 0–1). The linear and third-order nonlinear optical properties of these new organometallic complexes featuring phenylalkynyl ligands functionalized by 2-fluorenyl (Flu) groups were studied in their stable redox states. Their first electronic transitions are assigned with the help of DFT calculations. We show here that these compounds possess significant third-order NLO responses in the near-IR range for molecules of their size. In particular, the remarkably large 2PA activities of the new Ru(II) compounds in the 600–800 nm range (Z-scan) make them attractive nonlinear chromophores. Structure–property studies emphasize the importance of para- versus meta-connection of the 2-fluorenylethynyl units on the phenylalkynyl core and reveal that upon progressing from mono- to bis-alkynyl complexes a further increase of the 2PA cross section can be obtained while maintaining linear transparency in the visible range.

中文翻译:

的Fe的线性和三阶非线性光学性质(η 5 -C 55)(κ 2 -dppe) -和反式-Ru(κ 2 -dppe)2 -炔基配合物的2-芴基端基

一组通式的氧化还原活性铁和钌炔配合物的合成和表征[[]中号氯(1- p {C≡CC 6 ħ 5-(C≡CFlu)} (1 + p ] [PF 6 ] ñ报告(ñ = 0-1;= 1-2; [M] = [铁(η 5 -C 55)(κ 2 -dppe)]和p = 1或[M ] = [反式-Ru(κ 2 -dppe)2 ]和p= 0–1)。研究了这些新型有机金属配合物的线性和三阶非线性光学性质,这些配合物具有被2-芴基(Flu)基团官能化的苯基炔基配体,并处于稳定的氧化还原状态。在DFT计算的帮助下分配了他们的第一个电子转换。我们在这里表明,这些化合物在其分子大小的近红外范围内具有显着的三阶NLO反应。特别是,新的Ru(II)化合物在600-800 nm范围内具有非常大的2PA活性(Z-scan)使它们成为有吸引力的非线性生色团。结构性质研究强调了苯基炔基核心上的2-芴基乙炔基单元的对位和间位连接的重要性,并揭示了在从单炔基向双炔基复合物发展的过程中,可以进一步增加2PA截面,同时保持可见范围内的线性透明度。
更新日期:2018-06-30
down
wechat
bug