The X-ray Structure of [Fe(CO)3(η4-6-exo-(4-biphenylamino)cyclohepta-2,4-dien-1-one]

Abstract The structure of [Fe(CO) 3 (η 4 -6- exo -(4-biphenylamino)cyclohepta-2,4-dien-1-one] [monoclinic, a = 20.368 (1), b = 6.2757(4), c = 29.5214(14), β = 101.024(5), space group C2/c] has been determined. There is a moderate hydrogen-bond between the amine proton and the oxygen atom of the ketone in another molecule. There is no significant π-stacking of the phenyl rings, but the nitrogen atom is fairly planar likely due to interaction with the π-system of the 4-biphenyl group and the hydrogen-bonding. Graphical Abstract