%0 Journal Article
%T [5-Hydroxy-3-phenyl-1-(pyridin-2-yl)pyrazol-5-olato]diphenylboron
%A Kee-In Lee
%A Hye-Rin Bin
%A Do-Min Lee
%A Chong-Hyeak Kim
%J Acta Crystallographica Section E
%D 2011
%I International Union of Crystallography
%R 10.1107/s1600536811010634
%X In the title compound, C26H20BN3O, the B atom has tetrahedral geometry and is linked to two phenyl rings, the O atom of the hydroxypyrazole ring and the N atom of the pyridinyl ring. A six-membered BOCNCN ring forms by coordination of the B atom and the pyridinyl N atom. The BOCNCN ring has an envelope conformation [dihedral angle = 36.7 (1)¡ã between the planar ring atoms and the flap] with the B atom out of the plane. In the 1-(2-pyridinyl)-3-phenyl-5-hydroxypyrazole group, the pyridinyl ring, the phenyl ring and the pyrazole ring are almost coplanar: the pyrazole ring makes a dihedral angle of 9.56 (8)¡ã with the pyridinyl ring and 17.68 (7)¡ã with the phenyl ring. The crystal structure is stabilized by ¦Ð¨C¦Ð stacking interactions involving the pyridinyl and pyrazole rings of centrosymmetrically related molecules, with ring centroid separations of 3.54 (5)  .
%U http://scripts.iucr.org/cgi-bin/paper?S1600536811010634