Water soluble laser dyes

Patent · Wed Dec 31 23:00:00 EST 1997

OSTI ID:871770

Hammond, Peter R ^[1]; Feeman, James F ^[2]; Field, George F ^[3]

---

1. Livermore, CA
2. Wyomissing, PA
3. Santa Ana, CA

Novel water soluble dyes of the formula I are provided ##STR1## wherein R.sup.1 and R.sup.4 are alkyl of 1 to 4 carbon atoms or hydrogen; or R.sup.1 -R.sup.2 or R.sup.2 -R.sup.4 form part of aliphatic heterocyclic rings; R.sup.2 is hydrogen or joined with R.sup.1 or R.sup.4 as described above; R.sup.3 is --(CH.sub.2).sub.m --SO.sub.3.sup.-, where m is 1 to 6; X is N, CH or ##STR2## where Y is 2 --SO.sub.3.sup.- ; Z is 3, 4, 5 or 6 --SO.sub.3.sup.-. The novel dyes are particularly useful as the active media in water solution dye lasers.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America (Washington, DC)
• Patent Number(s): US 5792389
• OSTI ID: 871770
• Country of Publication: United States
• Language: English

Related Subjects

--so
-r
/252/999/
active
aliphatic
aliphatic heterocyclic
alkyl
atoms
carbon
carbon atom
carbon atoms
described
dye
dye laser
dye lasers
dyes
form
formula
heterocyclic
heterocyclic rings
hydrogen
joined
laser
laser dye
laser dyes
lasers
media
novel
particularly
particularly useful
provided
rings
soluble
solution
str1
str2
useful
water
water soluble
water solution
z