Crystal structure of di-(2,7-disubstituted-9 fluorenyl)glutamate

The title compound, di-(2,7-disubstituted-9 fluorenyl)glutamate, C82 H86 O12 has been characterized thus: triclinic, P 1, a=16.173(5)A, b=16.233(5)A, c=14.320(5)A, alpha=91.124(5), beta=105.098(5), gamma=92.270(5), V=3625(1)A3, Z=2 and F.W.=1248.54, Dm=1.125 gcm-3, Dc=1.169g cm-3. F000=1356.00, lambda(Mo- K)=0.71069 A, mu=0.77cm-1,final R1 and omegaR2 are 0.094 and 0.28 respectively.