Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC6H4N=NC6H4NO 2

Andrew M. McDonagh; Nigel T. Lucas; Marie P. Cifuentes; Mark G. Humphrey; Stephan Houbrechts; André Persoons

doi:10.1016/S0022-328X(00)00312-0

Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂

Andrew M. McDonagh^*, Nigel T. Lucas, Marie P. Cifuentes, Mark G. Humphrey, Stephan Houbrechts, André Persoons

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

The syntheses of the alkyne (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂ (1) and alkynyl complexes L_nM{(E)-4,4′-CCC₆H₄N=NC₆H ₄NO₂} [L_nM=trans-[RuCl(dppm)₂] (2), Ru(PPh₃)₂(η-C₅H₅) (3), Au(PPh₃) (4)] are reported. A structural study of 2 reveals E stereochemistry about the azo-linkage. Electrochemical data for the ruthenium complexes reveal that the azo-linkage in complexes 2 and 3 perturbs the metal-centred oxidation potential compared to all other alkynyl complexes of similar composition. Quadratic optical nonlinearities by hyper-Rayleigh scattering (HRS) at 1064 nm are very large for 2 and 3, but resonance-enhanced. Comparison of HRS data for 4 with those of Au{(E)-4,4′-CCC₆H₄X=CHC₆H ₄NO₂}(PPh₃) (X=CH, N) reveals that complex 4 has a significantly larger quadratic nonlinearity than its ene- or imino-linked analogues.

Original language	English
Pages (from-to)	184-192
Number of pages	9
Journal	Journal of Organometallic Chemistry
Volume	605
Issue number	2
DOIs	https://doi.org/10.1016/S0022-328X(00)00312-0
Publication status	Published - 7 Jul 2000

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McDonagh, A. M., Lucas, N. T., Cifuentes, M. P., Humphrey, M. G., Houbrechts, S., & Persoons, A. (2000). Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂. Journal of Organometallic Chemistry, 605(2), 184-192. https://doi.org/10.1016/S0022-328X(00)00312-0

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title = "Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC6H4N=NC6H4NO 2",

abstract = "The syntheses of the alkyne (E)-4,4′-HCCC6H4N=NC6H4NO 2 (1) and alkynyl complexes LnM{(E)-4,4′-CCC6H4N=NC6H 4NO2} [LnM=trans-[RuCl(dppm)2] (2), Ru(PPh3)2(η-C5H5) (3), Au(PPh3) (4)] are reported. A structural study of 2 reveals E stereochemistry about the azo-linkage. Electrochemical data for the ruthenium complexes reveal that the azo-linkage in complexes 2 and 3 perturbs the metal-centred oxidation potential compared to all other alkynyl complexes of similar composition. Quadratic optical nonlinearities by hyper-Rayleigh scattering (HRS) at 1064 nm are very large for 2 and 3, but resonance-enhanced. Comparison of HRS data for 4 with those of Au{(E)-4,4′-CCC6H4X=CHC6H 4NO2}(PPh3) (X=CH, N) reveals that complex 4 has a significantly larger quadratic nonlinearity than its ene- or imino-linked analogues.",

keywords = "Alkynyl, Cyclic voltammetry, Gold, Nonlinear optics, Quadratic hyperpolarizabilities, Ruthenium, X-ray structure",

author = "McDonagh, {Andrew M.} and Lucas, {Nigel T.} and Cifuentes, {Marie P.} and Humphrey, {Mark G.} and Stephan Houbrechts and Andr{\'e} Persoons",

year = "2000",

month = jul,

day = "7",

doi = "10.1016/S0022-328X(00)00312-0",

language = "English",

volume = "605",

pages = "184--192",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

number = "2",

}

McDonagh, AM, Lucas, NT, Cifuentes, MP, Humphrey, MG, Houbrechts, S & Persoons, A 2000, 'Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂', Journal of Organometallic Chemistry, vol. 605, no. 2, pp. 184-192. https://doi.org/10.1016/S0022-328X(00)00312-0

Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂. / McDonagh, Andrew M.; Lucas, Nigel T.; Cifuentes, Marie P. et al.
In: Journal of Organometallic Chemistry, Vol. 605, No. 2, 07.07.2000, p. 184-192.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Organometallic complexes for nonlinear optics

T2 - Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC6H4N=NC6H4NO 2

AU - McDonagh, Andrew M.

AU - Lucas, Nigel T.

AU - Cifuentes, Marie P.

AU - Humphrey, Mark G.

AU - Houbrechts, Stephan

AU - Persoons, André

PY - 2000/7/7

Y1 - 2000/7/7

N2 - The syntheses of the alkyne (E)-4,4′-HCCC6H4N=NC6H4NO 2 (1) and alkynyl complexes LnM{(E)-4,4′-CCC6H4N=NC6H 4NO2} [LnM=trans-[RuCl(dppm)2] (2), Ru(PPh3)2(η-C5H5) (3), Au(PPh3) (4)] are reported. A structural study of 2 reveals E stereochemistry about the azo-linkage. Electrochemical data for the ruthenium complexes reveal that the azo-linkage in complexes 2 and 3 perturbs the metal-centred oxidation potential compared to all other alkynyl complexes of similar composition. Quadratic optical nonlinearities by hyper-Rayleigh scattering (HRS) at 1064 nm are very large for 2 and 3, but resonance-enhanced. Comparison of HRS data for 4 with those of Au{(E)-4,4′-CCC6H4X=CHC6H 4NO2}(PPh3) (X=CH, N) reveals that complex 4 has a significantly larger quadratic nonlinearity than its ene- or imino-linked analogues.

AB - The syntheses of the alkyne (E)-4,4′-HCCC6H4N=NC6H4NO 2 (1) and alkynyl complexes LnM{(E)-4,4′-CCC6H4N=NC6H 4NO2} [LnM=trans-[RuCl(dppm)2] (2), Ru(PPh3)2(η-C5H5) (3), Au(PPh3) (4)] are reported. A structural study of 2 reveals E stereochemistry about the azo-linkage. Electrochemical data for the ruthenium complexes reveal that the azo-linkage in complexes 2 and 3 perturbs the metal-centred oxidation potential compared to all other alkynyl complexes of similar composition. Quadratic optical nonlinearities by hyper-Rayleigh scattering (HRS) at 1064 nm are very large for 2 and 3, but resonance-enhanced. Comparison of HRS data for 4 with those of Au{(E)-4,4′-CCC6H4X=CHC6H 4NO2}(PPh3) (X=CH, N) reveals that complex 4 has a significantly larger quadratic nonlinearity than its ene- or imino-linked analogues.

KW - Alkynyl

KW - Cyclic voltammetry

KW - Gold

KW - Nonlinear optics

KW - Quadratic hyperpolarizabilities

KW - Ruthenium

KW - X-ray structure

UR - http://www.scopus.com/inward/record.url?scp=0001454697&partnerID=8YFLogxK

U2 - 10.1016/S0022-328X(00)00312-0

DO - 10.1016/S0022-328X(00)00312-0

M3 - Article

SN - 0022-328X

VL - 605

SP - 184

EP - 192

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 2

ER -

Organometallic complexes for nonlinear optics: Part 20. Syntheses and molecular quadratic hyperpolarizabilities of alkynyl complexes derived from (E)-4,4′-HCCC₆H₄N=NC₆H₄NO ₂

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