US 12,473,308 B2
Luminescent silafluorene and germafluorene compounds
Janet Braddock-Wilking, St. Louis, MO (US); Cynthia M. Dupureur, St. Louis, MO (US); Stephan Germann, St. Louis, MO (US); and Helena Spikes, St. Louis, MO (US)
Assigned to The Curators of the University of Missouri, Columbia, MO (US)
Appl. No. 17/594,282
Filed by The Curators Of The University Of Missouri, Columbia, MO (US)
PCT Filed Apr. 9, 2020, PCT No. PCT/US2020/027355
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/210416, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/831,924, filed on Apr. 10, 2019.
Prior Publication US 2022/0162235 A1, May 26, 2022
Int. Cl. C07F 7/08 (2006.01); C07F 7/30 (2006.01); C09K 11/06 (2006.01); C12Q 1/02 (2006.01); G01N 1/30 (2006.01); G01N 21/64 (2006.01)
CPC C07F 7/0816 (2013.01) [C07F 7/083 (2013.01); C07F 7/30 (2013.01); C09K 11/06 (2013.01); C12Q 1/02 (2013.01); G01N 1/30 (2013.01); G01N 21/6428 (2013.01); C09K 2211/1018 (2013.01); G01N 2001/302 (2013.01); G01N 2021/6439 (2013.01)] 10 Claims
 
1. A method of measuring luminescence, the method comprising
introducing a composition comprising
a compound of Formula I,

OG Complex Work Unit Chemistry
wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl, and aryl; and
wherein R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, alkoxy, Y, and

OG Complex Work Unit Chemistry
 with the proviso that at least two of R3, R4, R5, and R6 are selected from the group consisting of Y and

OG Complex Work Unit Chemistry
wherein Y is selected from the group consisting of aryl, substituted aryl, heteroaryl, and substituted heteroaryl;
a solvent; and
a detergent;
optically exciting the composition; and
measuring luminescence produced by the compound of Formula I.