Abstract: A family of oxycarbonitride phosphor compositions is provided. Also provided are light emitting devices incorporating the oxycarbonitride phosphor compositions.

Abstract: Disclosed herein is a novel group of carbonitride and carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the inventive phosphors are expressed as follows: Cam/2Si12-(m+n)?xCxAlm+nN16-nOnEu2+??(1) M(II)m/2Si12-(m+n)?xCxM(III)m+nN16-nOn-y/2Hy:A??(2) Mm/vSi12-(m+n)?xCxM(III)m+nN16-nOn-y/2Hy:A??(3) Cam/2Si12-(m+n)+xAlm+n?xN16-n?xCxOn:Eu2+??(4) M(II)m/2Si12-(m+n)+xM(III)m+n?xN16-n?xCxOn-y/2Hy:A??(5) Mm/vSi12-(m+n)+xM(III)m+n?xN16-n?xCxOn-y/2Hy:A??(6) wherein v is the valence number of M, 0?m<5, 0?n?3, 0?x<4, and 0?y<1, M is at least one cation, M(II) is at least one divalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator.

Abstract: Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M—Al—Si—O—N—C—Ln and quintuplet system of M—Si—O—N—C—Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Abstract: Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M—Al—Si—O—N—C—Ln and quintuplet system of M—Si—O—N—C—Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Abstract: Disclosed herein is a novel family of oxycarbidonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M—Al—Si—O—N—C—Ln and quintuplet system of M—Si—O—N—C—Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbidonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Abstract: Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.

Abstract: Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows: Ca1?xAlx?xySi1?x+xyN2?x?xyCxy:A;??(1) Ca1?x?zNazM(III)x?xy?zSi1?x+xy+zN2?x?xyCxy:A;??(2) M(II)1?x?zM(I)zM(III)x?xy?zSi1?x+xy+zN2?x?xyCxy:A;??(3) M(II)1?x?zM(I)zM(III)x?xy?zSi1?x+xy+zN2?x?xy?2w/3CxyOw?v/2Hv:A; and??(4) M(II)1?x?zM(I)zM(III)x?xy?zSi1?x+xy+zN2?x?xy?2w/3?v/3CxyOwHv:A,??(4a) wherein 0<x<1, 0<y<1, 0?z<1, 0?v<1, 0<w<1, x+z<1, x>xy+z, and 0<x?xy?z<1, M(II) is at least one divalent cation, M(I) is at least one monovalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator doped in the crystal structure.

Abstract: A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor.

Abstract: Disclosed herein is a novel group of carbonitride and carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the inventive phosphors are expressed as follows: Cam/2Si12-(m+n)?xCxAlm+nN16-nOn:EU2+??(1) M(II)m/2Si12-(m+n)?xCxM(III)m+nN16-nOn-y/2Hy:A??(2) Mm/vSi12-(m+n)?xCxM(III)m+nN16-nOn-y/2Hy:A??(3) Cam/2Si12-(m+n)+xAlm+n?xN16-n?xCxOn:Eu2+??(4) M(II)m/2Si12-(m+n)+xM(III)m+n?xN16-n?xCxOn-y/2Hy:A??(5) Mm/vSi12-(m+n)+xM(III)m+n?xN16-n?xCxOn-y/2Hy:A??(6) wherein v is the valence number of M, 0?m<5, 0?n?3, 0?x<4, and 0?y<1, M is at least one cation, M(II) is at least one divalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator.

Abstract: Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.

Abstract: Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows: Ca1-xAlx-xySi1-x+xyN2-x-xyCxy:A??(1); Ca1-x-zNazM(III)x-xy-zSi1-x+xy+zN2-x-xyCxy:A??(2); M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xyCxy:A??(3); M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xy-2w/3CxyOw-v/2Hv:A??(4); and M(II)1-x-zM(I)zM(III)x-xy-zSi1-x+xy+zN2-x-xy-2w/3-v/3CxyOwHv:A??(4a), wherein 0<x<1, 0<y<1, 0?z<1, 0?v<1, 0<w<1, x+z<1, x>xy+z, and 0<x-xy-z<1, M(II) is at least one divalent cation, M(I) is at least one monovalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator doped in the crystal structure.

Abstract: Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M-Al—Si—O—N—C-Ln and quintuplet system of M-Si—O—N—C-Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Abstract: This invention relates to a new and efficient process for the production of dopamine agonists such as Cabergoline and the intermediates thereof.

Abstract: This invention relates to a new and efficient process for the production of dopamine agonists such as Cabergoline and the intermediates thereof.

Abstract: A process for the preparation of cilostazol of formula I from 6-hydroxy-3,4-dihydroquinolinone of formula II and 1-cyclohexyl-5-(4-halobutyl)-tetrazole of formula III, wherein X is a halogen atom such as Cl, Br, and I, that includes combining compounds II, III, a water-miscible organic solvent, a water-soluble base and water. The cilostazol can then be separated from the reaction mixture and dissolved in a solvent A. The resulting cilostazol solution is mixed with a solvent B to precipitate cilostazol particles of defined particle size range, milling the precipitate if desired, and filtering and drying the product.

Abstract: Process for the preparation of Flecainide, its pharmaceutically acceptable salts and important intermediates thereof that involves the use of the 2-halobenzoic acid and its derivatives as a starting material. The use of this process also allows for the synthesis of a novel intermediate useful in the production of Flecainide. This new process is an inexpensive and efficient process for the manufacture of these compounds.

Abstract: Process for the preparation of Flecainide, its pharmaceutically acceptable salts and important intermediates thereof that involves the use of the 2-halobenzoic acid and its derivatives as a starting material. The use of this process also allows for the synthesis of a novel intermediate useful in the production of Flecainide. This new process is an inexpensive and efficient process for the manufacture of these compounds.