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Squaraine-derived rotaxanes: sterically protected fluorescent near-IR dyes.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Arunkumar, Easwaran Forbes, Christopher C. Noll, Bruce C. Smith, Bradley D. |
| Copyright Year | 2005 |
| Abstract | A squaraine dye with bulky end groups is employed as the thread component in two Leigh-type amide rotaxanes. The rotaxanes are synthesized in a simple two-step process. X-ray crystal structures of the rotaxanes show that the pyridyl-containing macrocycle is more rigid and wraps more tightly around the cyclobutene core of the squaraine thread compared to the isophthalamide-containing macrocycle. The rotaxanes exhibit photophysical properties that are similar to the precursor squaraine. The encapsulating macrocycle greatly increases the chemical stability of the squaraine thread and inhibits aggregation-induced broadening of its absorption spectrum. It should be possible to prepare squaraine-derived rotaxanes with improved properties for a wide range of photophysical, photochemical, and biomedical applications. |
| Starting Page | 614 |
| Ending Page | 618 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www3.nd.edu/~bsmith3/pdf/JACS2005b.pdf |
| Alternate Webpage(s) | http://www3.nd.edu/~bsmith3/pdf/JACS2005e.pdf |
| PubMed reference number | 15755140v1 |
| Volume Number | 127 |
| Issue Number | 10 |
| Journal | Journal of the American Chemical Society |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Dyes Muscle Rigidity Rotaxanes chemical stability squaraine |
| Content Type | Text |
| Resource Type | Article |
