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author:

Wu, Kai-Qiang (Wu, Kai-Qiang.) [1] | Guo, Jian (Guo, Jian.) [2] | Yan, Jian-Feng (Yan, Jian-Feng.) [3] (Scholars:鄢剑锋) | Xie, Li-Li (Xie, Li-Li.) [4] (Scholars:谢莉莉) | Xu, Feng-Bo (Xu, Feng-Bo.) [5] | Bai, Sha (Bai, Sha.) [6] | Nockemann, Peter (Nockemann, Peter.) [7] | Yuan, Yao-Feng (Yuan, Yao-Feng.) [8] (Scholars:袁耀锋)

Indexed by:

EI Scopus SCIE

Abstract:

Two novel alkynyl-bridged symmetric bis-tridentate ligands 1,2-bis(1'-[4'-(2,2':6', 2 ''-terpyridinyl)]-ferrocenyl)ethyne (3a; tpy-Fc-C C-Fc-tpy; Fc = ferrocenyl; tpy = terpyridyl) and 1,4-bis(1'-[4'-(2,2':6', 2 ''-terpyridinyl)]ferrocenyl)-1,3-butadiyne (3b; tpy-Fc-C C-C C-Fc-tpy) and their Ru2+ complexes 6a and 6b have been synthesized and characterized by cyclic voltammetry, UV-vis and luminescence spectroscopy, and in the case of 3b by single-crystal X-ray diffraction. Cyclic voltammograms of both compounds, 3a and 3b, display two severely overlapping ferrocene-based oxidative peaks with only one reductive peak. The redox behavior of 6a and 6b is dominated by the Ru2+/Ru3+ redox couple (E-1/2 from 1.33 to 1.34 V), the Fe2+/Fe3+ redox couples (E-1/2 from 0.46 to 0.80 V), and the tpy/tpy(-)/tpy(2-)redox couples (E-1/2 from -1.19 to -1.48 V). The UV-vis spectra of 6a and 6b show absorption bands assigned to the (1)[(d(pi)(Fe))(6)] -> (1)[(d(pi)(Fe))(5)(pi*(Ru)(tpy))(1)] MMLCT transition at similar to 555 nm. Complexes 6a and 6b are luminescent in H2O-CH3CN (4 : 1, v/v) solution at room temperature, and 6b exhibits the strongest luminescence intensity (lambda(em)(max): 710 nm, Phi(em): 2.28 x 10(-4), tau: 358 ns) relative to analogous ferrocene-based bis(terpyridine) Ru(II) complexes reported so far.

Keyword:

Community:

  • [ 1 ] [Nockemann, Peter]Queens Univ Belfast, QUILL Res Ctr, Sch Chem & Chem Engn, Belfast BT9 5AQ, Antrim, North Ireland
  • [ 2 ] [Wu, Kai-Qiang]Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 3 ] [Guo, Jian]Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 4 ] [Yan, Jian-Feng]Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 5 ] [Xie, Li-Li]Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 6 ] [Yuan, Yao-Feng]Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China
  • [ 7 ] [Xu, Feng-Bo]Nankai Univ, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
  • [ 8 ] [Yuan, Yao-Feng]Nankai Univ, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
  • [ 9 ] [Bai, Sha]Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA
  • [ 10 ] [Yuan, Yao-Feng]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • [Nockemann, Peter]Queens Univ Belfast, QUILL Res Ctr, Sch Chem & Chem Engn, Belfast BT9 5AQ, Antrim, North Ireland

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Source :

DALTON TRANSACTIONS

ISSN: 1477-9226

Year: 2012

Issue: 36

Volume: 41

Page: 11000-11008

3 . 8 0 6

JCR@2012

3 . 5 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 19

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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