5,5'-Bis(hydroxymethyl)-3,3'-dimethoxybiphenyl-2,2'-diol with a new three-dimensional 3-modal topology of synthons
Artikel i vetenskaplig tidskrift, 2010

The title lignin model compound, C16H18O6, resides on a twofold axis parallel with the b axis, with the mid-point of the internal C-C(-x + 1, y, -z + 1/2) bond located on the twofold axis. The exo angles between the methoxy groups and the benzene rings deviate significantly from the expected value of 120° [125.15 (7) and 114.27 (6)°]. A 12-coordinated 3-modal three-dimensional net with a new topology was identified on the synthon level. A comparison of the flexibility of related o,o'-disubstituted biphenyl derivatives and biphenyl is presented, with the angles between the ring planes in substituted biphenyls found to be in the range 40-70°.

topology

conformation

lignin model compound

X-ray structure analysis

Författare

Vratislav Langer

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Knut Lundquist

Chalmers, Kemi- och bioteknik, Skogsindustriell kemiteknik

Acta Crystallographica Section C: Crystal Structure Communications

0108-2701 (ISSN) 1600-5759 (eISSN)

Vol. 66 o606-o608

Ämneskategorier

Oorganisk kemi

Organisk kemi

DOI

10.1107/S0108270110046913