Tam, Wilson; Guerin, Brigitte; Calabrese, Joseph C.; Stevenson, Sylvia H. published the artcile< 3-Methyl-4-methoxy-4'-nitrostilbene (MMONS): crystal structure of a highly efficient material for second-harmonic generation>, HPLC of Formula: 112-63-0, the main research area is laser second harmonic generation stilbene derivative; stilbene methyl methoxy nitro preparation structure; structure methylmethoxynitrostilbene crystal; methylstilbene preparation structure; nitrostilbene preparation structure; methoxystilbene preparation structure.
The preparation and crystal structure of 3-methyl-4-methoxy-4′-nitrostilbene (MMONS) are reported. MMONS generates second-harmonic radiation with a powder efficiency 1250 times that of urea; this is the largest measured powder SHG efficiency reported to date. MMONS is orthorhombic, space group Aba2, with a 15.584(1), b 13.463(1), and c 13.299(3) Å at 70°; dc = 1.282 for Z = 8. Final R = 0.043 (Rw = 0.041) for 950 reflections. The packing is made up of stacks of 4 mols. in a donor-acceptor-acceptor-donor configuration with π-π interactions resulting in short intermol. distances between these 4 Ph rings of 3.36-3.50 Å. It is suggested that charge-transfer excitons within the crystal may account for the large observed nonlinearity.
Chemical Physics Letters published new progress about Crystal structure. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics