US4588829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(Disulfido)tris(N,N-substituted dithiocarbamato)Mo(V) complexes
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1984-07-27
•
Granted: 1986-05-13
•
Expires: 2004-07-27
Abstract
Abstract This invention relates to (disulfido)tris(N,N-substituted dithiocarbamato)Mo(V) complexes. More particularly, this invention relates to compounds of the formula MoS2(S2CNR2)3 which are mononuclear, eight-coordinate, neutral Mo(V) complexes containing only eight sulfur atoms in the Mo coordination sphere. R is hydrogen, an alkyl, aryl, cycloalkyl group or mixture thereof. Preferably all of the R's are the same and are alkyl groups. These compounds are useful as lubricant additives.
Inventors
- 👤 Wie-Hin Pan
- 👤 Edward I. Stiefel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:12
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/12; C10M135/14; C10M135/18; C07; C07F; C07F11/00; C07F11/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
16 words
Mononuclear, eight-coordinate, neutral (disulfido)tris(N,N-substituted dithiocarbamato)Mo(V) complexes containing only eight sulfur atoms in the Mo coordination sphere.
Claim 2
Dependent Claim
16 words
Mononuclear, eight-coordinate, neutral (disulfido)tris(N,N-substituted dithiocarbamato)Mo(V) complexes containing only eight sulfur atoms in the Mo coordination sphere.
Claim 3
Dependent Claim
31 words
The complexes of claim 1 having the general formula MoS 2 (S 2 CNR 2 ) 3 wherein R is H, an alkyl group, cycloalkyl group, aryl group or mixture thereof.
Claim 4
Dependent Claim
11 words
The complexes of claim 2 wherein R consists of alkyl group.
Claim 5
Dependent Claim
40 words
Complexes of the structure ##STR4## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and are H, alkyl group, cycloalkyl group, aryl group or mixture thereof.
Claim 6
Dependent Claim
40 words
Complexes of the structure ##STR4## wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and are H, alkyl group, cycloalkyl group, aryl group or mixture thereof.
Claim 7
Dependent Claim
25 words
The complexes of claim 4 wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are alkyl.
Claim 8
Dependent Claim
26 words
The complexes of claim 5 wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same.
Claim 9
Independent Claim
54 words
A method of preparing a mononuclear, eight-coordinate, neutral (disulfido)tris(N,N substituted dithiocarbamato)Mo(V) complex containing only eight sulfur atoms in the Mo coordination sphere, said process comprising reacting, in an inert atmosphere, a tetrathiomolybdate salt of the formula [Cat] 2 MoS 4 with a thiuramdisulfide in non-aqueous media for a time sufficient to form said complex.
Claim 10
Independent Claim
54 words
A method of preparing a mononuclear, eight-coordinate, neutral (disulfido)tris(N,N substituted dithiocarbamato)Mo(V) complex containing only eight sulfur atoms in the Mo coordination sphere, said process comprising reacting, in an inert atmosphere, a tetrathiomolybdate salt of the formula [Cat] 2 MoS 4 with a thiuramdisulfide in non-aqueous media for a time sufficient to form said complex.
Claim 11
Dependent Claim
14 words
The process of claim 7 wherein Cat is an ammonium or substituted ammonium cation.
Claim 12
Dependent Claim
12 words
The process of claim 8 wherein Cat is a tetraalkyl ammonium cation.
Claim 13
Dependent Claim
45 words
The process of either of claims 7, 8 or 9 wherein said thiuramdisulfide has the formula ##STR5## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are H, alkyl, cycloalkyl, and aryl groups or mixture thereof.
Claim 14
Dependent Claim
20 words
The process of claim 10 wherein R 1 , R 2 , R 3 and R 4 are the same.
Claim 15
Dependent Claim
23 words
The process of claim 11 wherein R 1 , R 2 , R 3 and R 4 are the same and are alkyl.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |