Patent ID: 8197722
Filing Date: 2012-06-12
Classification: B33Y,B82Y,G11B,Y10S

Abstract:
1. A method for preparing a compound in an electronically excited state, comprising the steps of: a) exposing a compound having the formula D b) converting said compound to a multi-photon electronically excited state upon simultaneous absorption of at least two photons of said radiation by said compound, wherein the sum of the energies of all of said absorbed photons is greater than or equal to the transition energy from a ground state of said compound to said multi-photon excited state and wherein the energy of each absorbed photon is less than the transition energy between said ground state and the lowest single-photon excited state of said compound and is less than the transition energy between said multi-photon excited state and said ground state, wherein said compound is further defined by a formula where D where D m, n, o are integers such that 1≦m≦10, 0≦n≦10, and 0≦o≦10; and where: X, Y, Z are independently selected from the group consisting of CR wherein when Da or Db is selected from N, S and P, the attached R wherein when Da or Db is O, the attached Ra, Rb, Rc, Rd are independently selected from the group consisting of H, —(CH wherein one of Ra and Rb is not present when Da is O or S, and wherein one of Rc and Rd is not present when Db is O or S; R R where 0<α<10 and 1<β<25; R R R R