104097-04-3Relevant articles and documents
Photochemical Carbon-Phosphorus Bond Cleavage of Nitro-substituted Benzylphosphonic Acids
Okamoto, Yoshiki,Iwamoto, Narimasa,Takamuku, Setsuo
, p. 1516 - 1517 (1986)
Upon u.v.-irradiation, the C-P bond of p-nitrobenzylphosphonate is more readily cleaved to give a monomeric metaphosphate anion as intermediate than those of o- and m-derivatives.
Synthesis and nonlinear optical properties of push-pull type stilbene and pyrazoline based chromophores
Szukalski,Parafiniuk,Haupa,Goldeman,Sahraoui,Kajzar,Mysliwiec
, p. 507 - 515 (2017/04/17)
In this work we present the synthesis, spectroscopic and nonlinear optical properties of push-pull type organic dyes based on 1-phenyl-2-pyrazoline or 4-(dimethylamino)phenyl chromophores as a donor part, and bridged by a double bound ortho- or meta-subst
Photoisomerization of Trans Ortho-, Meta-, Para-Nitro Diarylbutadienes: A Case of Regioselectivity
Agnihotri, Harsha,Paramasivam, Mahalingavelar,Palakollu, Veerabhadraiah,Kanvah, Sriram
, p. 1324 - 1331 (2015/11/10)
A series of ortho-, meta- and para-substituted trans-nitro aryl (phenyl and pyridyl) butadienes have been synthesized and characterized. The effect of substitution and positional selectivity on their fluorescence and photoisomerization were systematically investigated. Among all dienes, meta- and para-nitro phenyl-substituted derivatives exhibit remarkable solvatochromic emission shifts due to intramolecular charge transfer. On the other hand, ortho derivatives undergo regioselective isomerization upon photoexcitation in contrast to inefficient isomerization of para and meta nitro-substituted dienes. Single crystal X-ray analysis revealed existence of intramolecular hydrogen bonding between the nitro group and the hydrogen of the proximal double bond. This restricts the rotation of the proximal double bond thereby allowing regioselective isomerization. The observations were also supported by NMR spectroscopic studies.