Bi-pyridyl-rumetal complexes
First Claim
1. A compound of formula I
wheren is 1 or 2andRu is ruthenium;
each X independently is selected from Cl, SCN, H2 O, Br, I, CN, --NCO and SeCN;
andL is a ligand of the formula ##STR8## and L1 is selected from a ligand of formula a) to g) ##STR9## where each R independently is selected from OH, hydrogen, C1-20 alkyl, --ORa or --N(Ra)2andeach Ra independently is hydrogen or C1-4 alkyl.
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Accused Products
Abstract
A compound of formula (I): (X)n RuLL1 where n is 1 or 2, preferably 2, and in which Ru is ruthenium; each X independently is selected from Cl, SCN, H2 O, Br, I, CN and SeCN and L is a ligand of formulae (a) to (g) and L1 is selected from a ligand of formulae (a) to (c) where each R independently is selected from OH, hydrogen, C1-20 alkyl, --ORa or --N(Ra)2 and each Ra independently is hydrogen or C1-4 alkyl.
126 Citations
6 Claims
- 1. A compound of formula I
- space="preserve" listing-type="equation">(X).sub.n Ru LL.sub.1 (I)
where n is 1 or 2 and Ru is ruthenium; each X independently is selected from Cl, SCN, H2 O, Br, I, CN, --NCO and SeCN; and L is a ligand of the formula ##STR8## and L1 is selected from a ligand of formula a) to g) ##STR9## where each R independently is selected from OH, hydrogen, C1-20 alkyl, --ORa or --N(Ra)2 and each Ra independently is hydrogen or C1-4 alkyl. - View Dependent Claims (2, 3, 5)
- 4. A compound of formula II
- space="preserve" listing-type="equation">(X'"'"').sub.2 Ru(L").sub.2 (II)
in which L" is a group of formula a" or b ##STR11## and X'"'"' is selected from Cl, NCO, CN and SCN; and R" is hydrogen or C1-20 alkyl.
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6. A compound according to claim wherein said compound is selected from cis or trans-dithiocyanato-bis(2,2'"'"'-bipyridyl-4,4'"'"'-dicarboxylate)ruthenium and cis-dithiocyanato-bis(2,2'"'"'-bipyridyl-4,4'"'"'-dicarboxylate)ruthenium.
Specification
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- Resources
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Current AssigneeEcole polytechnique fãdãrale de lausanne epfl (Schweizerische Eidgenossenschaft)
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Original AssigneeEcole polytechnique fãdãrale de lausanne epfl (Schweizerische Eidgenossenschaft)
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InventorsNazeeruddin, Mohammad K., Graetzel, Michael
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Primary Examiner(s)Ivy, C. Warren
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Assistant Examiner(s)DAVIS, ZINNA NORTHINGTON
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Application NumberUS08/211,824Time in Patent Office559 DaysField of Search546/4US Class Current546/4CPC Class CodesC07F 15/0053 without a metal-carbon linkageC09B 57/00 Other synthetic dyes of kno...C09B 57/10 Metal complexes of organic ...H01G 9/2031 comprising titanium oxide, ...H01G 9/2059 comprising an organic dye a...H10K 85/344 comprising rutheniumY02E 10/542 Dye sensitized solar cellsY02E 10/549 Organic PV cells
