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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: Tetrahedron Lett. 2007 May 7;48(19):3471–3474. doi: 10.1016/j.tetlet.2007.03.026

Table 1.

Photophysical properties and water solubility measurements of different DCDHF (I) and DCDHF-V (II) chromophores

λmax λem ΦF
(water)
εmax
(Lcm−1 mol−1)
Solubility in
water14 (ppm)
I 1 470a 546 0.12 89,900 <0.001
12 498 529 0.001 15,100 0.40
14 496a 531 0.002 44,200 1.40
15 493 528 0.001 64,700 1.50 × 102
16 500 526 0.001 37,300 3.80
17 489 529 0.002 31,500 2.80 × 103
19 500 517 0.001 79,300 >2 × 104
21 496b 65,800 >2 × 104
26 477 517 0.001 57,300 7.30 × 102
27 480 520 0.004 42,700 4.70 × 102
II 2 560a 642 0.002 13,500 <0.001
6 535a 646 0.002 77,900 ~0.05
9 587b 87,200 ~0.01
24 585 639 0.01 37,000 >2 × 104
a

A small volume of ethanol stock solution added to the cuvette of water.

b

Aggregation was observed in water.