Title:
NONLINEAR OPTICAL ORGANIC MATERIAL
Document Type and Number:
Japanese Patent JPH02248931
Kind Code:
A
Abstract:
PURPOSE:To obtain the nonlinear optical org. material which has excellent crystallinity and has the activity to generate second harmonic waves (SHG) and the cutoff wavelength of which exists in a short wavelength region by using specific quinic acid. CONSTITUTION:The (-)-quinic acid expressed by formula I is used. The (-)- quinic acid is a compd. corresponding to 1,3,4,5-tetrahydroxycyclohexane-1- carboxylic acid and has 4 hydroxyl groups and 1 carboxyl group in the skeleton of a 6-membered ring. A large hydrogen bond is expected in the molecular ring. The nonlinear optical org. material which is stable in a warm room, has the extremely good crystallinity, is white, has the excellent transparency and has the cutoff wavelength existing in the short wavelength region is thus obtd.
Inventors:
HIDAKA TAKAHIRO
YAMANAKA KAZU
NAKATANI HIROYUKI
YAMANAKA KAZU
NAKATANI HIROYUKI
Application Number:
JP7011589A
Publication Date:
October 04, 1990
Filing Date:
March 22, 1989
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
G02F1/35; C07C62/04; C09K3/00; G02F1/355; G02F1/361; (IPC1-7): C07C62/04; C09K3/00; G02F1/35