Endohedral metallofullerene derivatives
View Patent ↗Trimetallic nitride endohedral metallofullerene derivatives and their preparation are described. The trimetallic nitride endohedral metallofullerene derivatives have the general formula A 3-n X n @C m (R) where n ranges from 0 to 3, A and X may be trivalent metals and may be either rare earth metal or group IIIB metals, m is between about 60 and about 200, and R is preferably an organic group. Derivatives where the R group forms cyclized derivatives with the fullerene cage are also described.
1. An endohedral metallofullerene having the formula:
A 3-n X n N@C m (R)
wherein:
A is a metal;
X is a second metal;
n is an integer from 0 to 3;
m is an even integer from about 68 to about 200; and
R is C 4 H 9 N bonded to the C m fullerene cage through at least two carbon atoms on the C m fullerene cage.
2. The metallofullerene of claim 1 wherein m is 80.
3. The metallofullerene of claim 1 wherein:
A is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium; and
X is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium.
4. An endohedral metallofullerene having the formula:
A 3-n X n N@C m (R)
wherein:
A is a metal;
X is a second metal;
n is an integer from 0 to 3;
m is an even integer from about 68 to about 200; and
R is C 10 H 12 O 2 bonded to the C m fullerene cage through at least two carbon atoms on the C m fullerene cage.
5. The metallofullerene of claim 4 wherein m is 80.
6. The metallofullerene of claim 4 wherein:
A is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium; and
X is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium.
7. An endohedral metallofullerene having the formula:
A 3-n X n N@C m (R)
wherein:
A is a metal;
X is a second metal;
n is an integer from 0 to 3;
m is an even integer from about 68 to about 200; and
R comprises carbon and hydrogen, and wherein R forms a cyclic ring with at least two carbon atoms on the C m fullerene cage.
8. The metallofullerene of claim 7 wherein R forms a five-member ring on the C m fullerene cage.
9. The metallofullerene of claim 7 wherein R futher comprises an oxygen or nitrogen.
10. The metallofullerene of claim 7 wherein m is 80.
11. The metallofullerene of claim 7 wherein:
A is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium; and
X is selected from the group consisting of Scandium, Yttrium, Lanthanum, Gadolinium, Holmium, Erbium, Thulium, and Ytterbium.
12. The metallofullerene of claim 7 wherein X is Scandium.
13. The metallofullerene of claim 7 wherein X is Holmium.
14. The metallofullerene of claim 7 wherein X and A are different.
15. The metallofullerene of claim 7 wherein A is selected from the group consisting of a rare earth element and group IIIB element.
16. The metallofullerene of claim 15 wherein X is selected from the group consisting of a rare earth element and group IIIB element.
17. The metallofullerene of claim 7 wherein R forms a six-member ring with the C m fullerene cage.
18. The metallofullerene of claim 7 wherein A is Gadolinium.
19. The metallofullerene of claim 7 wherein R is bonded to the C m fullerene cage at a five-member ring and six-member ring junction of the C m fullerene cage.
20. The metallofullerene of claim 7 wherein A 3-n X n N@C m (R) is a [4+2] cycloaddition product.
21. The metallofullerene of claim 7 wherein A 3-n X n N@C m (R) is a [1, 3-dipolar] cycloaddition product.
22. The metallofullerene of claim 7 wherein A 3-n X n N@C m (R) is a [2+1] cycloaddition product.
23. The metallofullerene of claim 7 wherein A 3-n X n N@C m (R) is a [3+2] cycloaddition product.
24. The metallofullerene of claim 7 wherein A 3-n X n N@C m (R) is a [2+2] cycloaddition product.