Phosphonated polypyridyl compounds and their complexes

• US 5,789,592 A
• Filed: 10/30/1996
• Issued: 08/04/1998
• Est. Priority Date: 05/02/1994
• Status: Expired due to Term

• Current Assignee: Ecole polytechnique fãdãrale de lausanne epfl (Schweizerische Eidgenossenschaft)
• Original Assignee: Ecole polytechnique fãdãrale de lausanne epfl (Schweizerische Eidgenossenschaft)
• Inventors: Nazeeruddin, Mohammad K., Rotzinger, Francois P., Ruile, Stephan, Kohle, Oliver, Zakeeruddin, Shaik Mohammad, Pechy, Peter, Gratzel, Michael
• Primary Examiner(s): Rotman, Alan L.
• Application Number:
  US08/732,294
• Time in Patent Office: 643 Days
• Field of Search: 546/21
• US Class Current: 546/21
• CPC Class Codes: A61K 2123/00 Preparations for testing in vivo
• CPC Class Codes: A61K 51/0478 complexes from non-cyclic ligands, e.g. EDTA, MAG3
• CPC Class Codes: A61K 51/0489 Phosphates or phosphonates, e.g. bone-seeking phosphonates; phospholipids: A61K51/0408; nucleotides or nucleic acids: A61K51/0491
• CPC Class Codes: C07F 15/0053 without a metal-carbon linkage
• CPC Class Codes: C07F 9/58 Pyridine rings
• CPC Class Codes: C09B 57/10 Metal complexes of organic compounds not being dyes in uncomplexed form
• CPC Class Codes: H01G 9/2031 comprising titanium oxide, e.g. TiO2 H01G9/2036 takes precedence
• CPC Class Codes: H01G 9/2059 comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
• CPC Class Codes: H10K 85/344 comprising ruthenium

Abstract

A compound in metal-free or metal complex form of formula (1) to (3) in which R is hydrogen or C_1-30 alkyl; X is hydrogen, halogen (preferably Cl or Br) or C_1-30 alkyl. ##STR1##

Claims

1. A compound, in metal-free form, of formula 1 to 3 ##STR5## In which R is hydrogen or C_1-30 alkyl;

X is hydrogen, halogen (preferably Cl or Br) or C_1-30 alkyl.