Luminescent dye comprising metallocomplex of a oxoporphyrin
First Claim
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1. Luminescent dye comprising a metallocomplex of an oxoporphyrin having a general formula:
- ##STR4## wherein R1 to R8 are radicals belonging to the group consisting of;
H, lower alkyl (number of C≦
6) or CH2 --CH2 --COO--R9, with R9 =H or alkyl (number of C≦
18) and M=Pt2+ or Pd2+.
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Abstract
New luminescent dye including a metallocomplex of an oxoporphyrin having the general formula: ##STR1## wherein R1 to R8 are radicals belonging to the group: H, lower alkyl with number of C≦6 or CH2 --CH2 --COO--R9, with R9 =H or alkyl with number of C≦18 and M=Pt2+ or Pd2+.
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20 Claims
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1. Luminescent dye comprising a metallocomplex of an oxoporphyrin having a general formula:
- ##STR4## wherein R1 to R8 are radicals belonging to the group consisting of;
H, lower alkyl (number of C≦
6) or CH2 --CH2 --COO--R9, with R9 =H or alkyl (number of C≦
18) and M=Pt2+ or Pd2+. - View Dependent Claims (2, 3, 4, 5)
- ##STR4## wherein R1 to R8 are radicals belonging to the group consisting of;
-
6. Active element for optical determination of oxygen in liquid and gaseous media comprising a composition prepared from at least one oxygen-permeable polymer and at least one luminescent dye distributed in said oxygen-permeable polymer, said polymer having a mass, wherein said luminescent dye is a metallocomplex of the oxoporphyrins having the general formula:
- ##STR5## wherein R1 to R8 are radicals belonging to a group consisting of;
H, lower alkyl (number of C≦
6) or CH2 --CH2 --COO--R9, with R9 =H or alkyl (number of C≦
18) and M=Pt2+ or Pd2+ or Zn2+. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 19, 20)
- ##STR5## wherein R1 to R8 are radicals belonging to a group consisting of;
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14. Method for measuring oxygen concentration, including the following steps:
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using a sensitive element comprising an oxygen-permeable polymer with a distributed luminescent dye having the general formula;
##STR6## wherein R1 to R8 are radicals belonging to a group consisting of;
H, lower alkyl (number of C≦
6) or CH2 --CH2 --COO--R9, with R9 =H or alkyl (number of C≦
18) and M=Pt2+ or Pd2+ or Zn2+ ;bringing said element into contact with a sample to be analyzed; exciting said sensitive element with an exciting wavelength optimum between 570 and 650 nm; measuring an emission wavelength optimum between 700 and 850 nm; calculating the lifetime value of the luminescent decay of said luminescent dye, and deriving the oxygen concentration from said lifetime value. - View Dependent Claims (15, 16)
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17. The method for measuring oxygen concentration, including the following steps:
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using a sensitive element comprising an oxygen-permeable polymer with a distributed luminescent dye having the general formula;
##STR7## wherein R1 to R8 are radicals belonging to a group consisting of;
H, lower alkyl (number of C≦
6) or CH2 -CH2 --COO--R9, with R9 =H or alkyl (number of C≦
18) and M=Pt2+ or Pd2+ or Zn2+ ;bringing said element into contact with a sample to be analyzed; exciting said sensitive element with an exciting wavelength optimum between 570 and 650 nm; measuring an emission wavelength optimum between 700 and 850 nm; calculating the intensity value of said luminescence dye, and deriving the oxygen concentration from said intensity value. - View Dependent Claims (18)
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Specification