Synthesis, growth, and characterization of 3-(4-Methoxyphenyl)-1-(pyridin-2-yl) prop-2-en-1-one single crystal: A potential NLO material

Growth, structure, spectral and optical properties of semiorganic crystal: Pyridine-1-ium-2-carboxylatehydrogenbromide

“…The C-H out of plane bending modes usually medium to strong intensity arises in the region 950-600 cm −1 [32]. The in-plane aromatic C-H deformation vibrations occur in the region 1300-1000 cm −1 , in the present case the band is appeared at 1156 cm −1 .…”

Crystal structures of (E)-5-(4-methylphenyl)-1-(pyridin-2-yl)pent-2-en-4-yn-1-one and [3,4-bis(phenylethynyl)cyclobutane-1,2-diyl]bis(pyridin-2-ylmethanone)

“…al., 2013), AYUYOJ (Fun et al, 2011a), BERXEC (Wang et al, 2004), CIBYIY (Brennan et al, 2018), COBJEJ (Prajapati et al, 2008), ENINOG (Lee et al, 2016), GARMAP (Fan & Wang, 2012), IJUSAI (Jasinski et al, 2011), IXOXOJ (Dudek et al, 2011), LANTAY (Qian et al, 2017), OGIZIP and VUZVET (Tan et al, 2016), PUKVEY (Rout & Mondal, 2015), QEMJOK and QEMJUQ (Albaladejo et al, 2018), SOXHAP (Lin et al, 2009), TISCEF (Jayarama et al, 2013) and YUQTEK (Li et al, 2010)] demonstrate similar conformations, but different crystal packing in the region of pyridyl ring. The majority of 1-phenyl-substituted chalcones and 1-phenyl-substituted pentenyn-1-ones also exhibit a nearly coplanar arrangement of the aryl and ketone fragments and thus no hindrance occurs between the hydrogen atoms of these fragments.…”

Synthesis, crystal growth and characterization of a D-π-A type novel organic nonlinear optical single crystal

“…The substitution of a strong electron donating chlorine group at the para position of the phenylene group leads to a push -pull effect that results in an easy flow of charges towards the electron accepting carbonyl group [12]. However, a pyridine based chalcone 3-(4-Methoxyphenyl)-1-(pyridin-2-yl) prop-2-en-1-one, MPP [27] showed a SHG efficiency of 4.7 times that of urea. In MPP, an electron donating methoxy group is attached at the para position of the phenelene moiety.…”

“…Moreover, in some of the organic crystals such as PDBA [26], MMONS [29], MPP [27] and a chalcone co-crystal [12] a zig-zag head to tail and parallel alignment of the molecular dipoles was observed which leads to the summation of the individual molecular dipole contribution resulting in a net polarization in the crystal. This kind of zig-zag head to tail parallel dipole alignment resulted in very high SHG conversion efficiency in these crystals.…”