TY - PAT
T1 - Recognition and separation of carbon clusters
AU - Welch, Christopher J
AU - Pirkle, William H
N1 - The invention described herein was made with Government support under Grant NSF CHE 87-14950 awarded by The National Science Foundation. The Government has certain rights in the invention.
PY - 1996/1/30
Y1 - 1996/1/30
N2 - Carbon clusters, such as C.sub.60 and C.sub.70 fullerenes are separated by means of a recognition selector having the formula: ##STR1## wherein R.sub.1 is ##STR2## wherein R.sub.2 is O, S or NR.sub.12 wherein R.sub.12 is independently hydrogen or P.dbd.O with the proviso that when R.sub.12 is P.dbd.O, then only one such group is present and all R.sub.2 's are additionally bonded to R.sub.12, PA1 R.sub.4 is independently O, S or NH, PA1 R.sub.3 and R.sub.5 are each independently hydrogen or lower alkyl, PA1 n and o are each independently zero, 1, 2 or 3, PA1 p, q, r, s and t are each independently zero or 1, PA1 Ar is a monocyclic or ortho-fused polycyclic aromatic moiety having up to 10 carbon atoms, either of which may be unsubstituted or substituted with one or more lower alkyl, NO.sub.2, N(R.sub.6).sub.3.sup.30, CN COOR.sub.7, SO.sub.3 H, COR.sub.8 and OR.sub.9 wherein R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each independently hydrogen or lower alkyl; PA1 W is H or CH.dbd.CH.sub.2 ; and PA1 m is 1 to 10.
AB - Carbon clusters, such as C.sub.60 and C.sub.70 fullerenes are separated by means of a recognition selector having the formula: ##STR1## wherein R.sub.1 is ##STR2## wherein R.sub.2 is O, S or NR.sub.12 wherein R.sub.12 is independently hydrogen or P.dbd.O with the proviso that when R.sub.12 is P.dbd.O, then only one such group is present and all R.sub.2 's are additionally bonded to R.sub.12, PA1 R.sub.4 is independently O, S or NH, PA1 R.sub.3 and R.sub.5 are each independently hydrogen or lower alkyl, PA1 n and o are each independently zero, 1, 2 or 3, PA1 p, q, r, s and t are each independently zero or 1, PA1 Ar is a monocyclic or ortho-fused polycyclic aromatic moiety having up to 10 carbon atoms, either of which may be unsubstituted or substituted with one or more lower alkyl, NO.sub.2, N(R.sub.6).sub.3.sup.30, CN COOR.sub.7, SO.sub.3 H, COR.sub.8 and OR.sub.9 wherein R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each independently hydrogen or lower alkyl; PA1 W is H or CH.dbd.CH.sub.2 ; and PA1 m is 1 to 10.
M3 - Patent
M1 - 5487831
Y2 - 1994/03/23
ER -