- A simple, novel method for the preparation of polymer-tetherable, zwitterionic merocyanine NLO-chromophores
-
A suite of polymer-ready nonlinear optical merocyanines has been synthesised and characterised. The tethering functionality - a vicinal dihydroxypropyl residue - is introduced onto the donor nitrogen of the chromophore precursor without the need for protection/deprotection steps, thereby giving ready access to potentially high Tg condensation polymer systems. An X-ray crystal structure determination on a representative chromophore 5 confirms the largely zwitterionic nature of these systems and experimental measurements of second-order nonlinear response [β(0)], by hyper-Raleigh scattering, indicate that a pyridylidene donor-quinomethide acceptor combination gives rise to the largest nonlinearity.
- Kay,Woolhouse,Gainsford,Haskell,Barnes,McKinnie,Wyss
-
-
Read Online
- Synthesis of bioactive 1-alkyl-1H-naphtho[2,3-d][1,2,3]triazole-4,9-diones and N-aryl-2-aminomethylene-1,3-indanediones using water as the solvent
-
Through a [2+3] cycloaddition reaction, a new environmentally friendly method was developed to enable the synthesis of bioactive 1-alkyl-1H-naphtho[2, 3-d][1,2,3]triazole-4,9-diones and N-aryl-2-aminomethylene-1,3-indanediones using water as the solvent w
- Zhang, Qian,Shrestha, Jaya P.,Chang, Cheng-Wei Tom
-
p. 1839 - 1842
(2014/03/21)
-
- β,β-Diacyl-enamines and -enoles, 6: An Efficient Synthesis of Aminoalkylidene Derivatives Fivemembered Active Methylene Compounds
-
Trimethyl orthoacetate, orthopropionate or orthobenzoate in contrast to orthoformiate do not undergo a three component condensation with anilines and cyclic sixmembered active methylene compounds to the corresponding N-substituted aminomethylene derivativ
- Wolfbeis, Otto S.
-
p. 369 - 384
(2007/10/02)
-
