Barlow, AdamBabgi, BandarSamoc, MarekCorkery, TimothyVan Cleuvenbergen, StijnAsselberghs, IngeClays, Koen JanCifuentes, MarieHumphrey, Mark2015-12-070004-9425http://hdl.handle.net/1885/18782The alkynes HC≡CC6H2-2,6-Et2-4- C≡CC6H4-4-NO2 (4) and HC≡CC6H4-4-C≡CC6H2-2,6-Et2-4-C≡CC6H4-4-NO2 (6) and gold alkynyl complexes Au{C≡CC6H2-2,5-(OEt)2-4-C≡CC6H4-4-NO2}(PPh3) (7), Au(C≡CC6H2-2,6-Et2-4-C≡CC6H4-4-NO2)(PPh3) (8), and Au(C≡CKeywords: Alkynyl complexes; Femtoseconds; First hyperpolarizabilities; Hyper Rayleigh scattering; Linear optical properties; Maximal values; Metal centres; Non-linear optical properties; Optical nonlinearity; Organometallic complex; Third-order; Two-photon absorpt201210.1071/CH120542016-02-24