Claims
- 1. A metal complex having two seven-member metallocycles, wherein each metallocycle includes four atoms from a bis-aromatic moiety and is formed with bonds from the metal atom to at least 2 heteroatoms, and wherein said two seven-member metallocycles are joined together by at least one bridging group and wherein the metal in said metal complex is selected from the group consisting of groups 3-6 and Lanthanide elements of the Periodic Table of Elements.
- 2. The metal complex of claim 1, wherein said two, bridged seven-member metallocycles are compositionally identical.
- 3. The metal complex of claim 2, wherein each of said metallocycles includes four atoms from a bis-aryl moiety.
- 4. A metal complex characterized by the general formula:
- 5. The metal complex of claim 4, wherein each L is independently selected from the group consisting of halide, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, boryl, silyl, amino, amine, hydrido, allyl, diene, phosphino, phosphine, carboxylates, alkylthio, arylthio, thioxy, 1,3-dionates, oxalates, carbonates, nitrates, sulphates, and combinations thereof.
- 6. The composition of claim 4, wherein at least one L is an anion.
- 7. A metal complex characterized by either of the general formulas:
- 8. The complex of claim 7 wherein the complex is characterized by the general formula:
- 9. The complex of claim 8 wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, and R20 is independently selected from the group consisting of hydride, halide, and optionally substituted alkyl, heteroalkyl, aryl, heteroaryl, alkoxyl, aryloxyl, silyl, boryl, phosphino, amino, alkylthio, arylthio, thioxy, seleno, nitro, and combinations thereof.
- 10. The complex of claim 9, wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, and R20 is independently selected from the group consisting of hydride, halide, and optionally substituted alkyl, heteroalkyl, aryl, heteroaryl, alkoxyl, aryloxyl, silyl, amino, alkylthio, arylthio and thioxy.
- 11. The complex of claim 8 wherein the complex is characterized by the general formula:
- 12. The complex of claim 11, wherein the complex is characterized by the formula:
- 13. The complex of either of claims 7, 8, 9, 10, 11, or 12, wherein at least one of R2 and R12 is not hydrogen.
- 14. The composition of claim 13, wherein R2 and R12 are independently selected from the group consisting of optionally substituted aryl and heteroaryl.
- 15. The complex of either of claims 7, 8, 9, 10, 11, or 12, wherein the bridging group B is selected from the group consisting of optionally substituted divalent hydrocarbyl and divalent heteroatom containing hydrocarbyl.
- 16. The complex of claim 15, wherein B is selected from the group consisting of optionally substituted divalent alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, aryl, heteroaryl and silyl.
- 17. The complex of claim 15, wherein B is represented by the general formula —(Q″R402−z″)z′— wherein each Q″ is either carbon or silicon and each R40 may be the same or different from the others such that each R40 is selected from the group consisting of hydride and optionally substituted hydrocarbyl, and optionally two or more R40 groups may be joined into a ring structure having from 3 to 50 atoms in the ring structure not counting hydrogen atoms; z′ is an integer from 1 to 10; and z″ is 0, 1 or 2.
- 18. The metal complex either of claims 7, 8, 9, 10, 11, or 12, wherein each L is independently selected from the group consisting of halide, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, substituted heteroalkyl heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, aryloxy, boryl, silyl, amino, amine, hydrido, allyl, diene, phosphino, phosphine, carboxylates, alkylthio, arylthio, thioxy, 1,3-dionates, oxalates, carbonates, nitrates, sulphates, and combinations thereof.
- 19. The complex of either of claims 7, 8, 9, 10, 11, or 12, wherein at least one L is an anion.
- 20. The complex of either of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, wherein M is selected from the group consisting of Hf, Zr and Ti.
- 21. A catalyst comprising the complex of any of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 and one or more activators.
- 22. The catalyst of claim 21 additionally comprising a group 13 reagent.
- 23. The catalyst of claim 21, wherein the activator is an ionic activator.
Parent Case Info
[0001] This application claims the benefit of U.S. Provisional Application No. 60/375,363 filed on Apr. 24, 2002, which is incorporated herein by reference for all purposes.
Provisional Applications (1)
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Number |
Date |
Country |
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60375363 |
Apr 2002 |
US |