Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Keum, Sam-Rok, Hur, Mun-Suk, Kazmaier, Peter M., Buncel, Erwin (1991) Thermo- and photochromic dyes: indolino-benzospiropyrans. Part 1. UV–VIS spectroscopic studies of 1,3,3-spiro(2H-1-benzopyran-2,2′-indolines) and the open-chain merocyanine forms; solvatochromism and medium effects on spiro ring formation. Canadian Journal of Chemistry, 69 (12). 1940-1947 doi:10.1139/v91-279

Advanced
   -   Only viewable:
Reference TypeJournal (article/letter/editorial)
TitleThermo- and photochromic dyes: indolino-benzospiropyrans. Part 1. UV–VIS spectroscopic studies of 1,3,3-spiro(2H-1-benzopyran-2,2′-indolines) and the open-chain merocyanine forms; solvatochromism and medium effects on spiro ring formation
JournalCanadian Journal of Chemistry
AuthorsKeum, Sam-RokAuthor
Hur, Mun-SukAuthor
Kazmaier, Peter M.Author
Buncel, ErwinAuthor
Year1991 (December 1)Volume69
Issue12
PublisherCanadian Science Publishing
DOIdoi:10.1139/v91-279Search in ResearchGate
Generate Citation Formats
Mindat Ref. ID8317686Long-form Identifiermindat:1:5:8317686:9
GUID0
Full ReferenceKeum, Sam-Rok, Hur, Mun-Suk, Kazmaier, Peter M., Buncel, Erwin (1991) Thermo- and photochromic dyes: indolino-benzospiropyrans. Part 1. UV–VIS spectroscopic studies of 1,3,3-spiro(2H-1-benzopyran-2,2′-indolines) and the open-chain merocyanine forms; solvatochromism and medium effects on spiro ring formation. Canadian Journal of Chemistry, 69 (12). 1940-1947 doi:10.1139/v91-279
Plain TextKeum, Sam-Rok, Hur, Mun-Suk, Kazmaier, Peter M., Buncel, Erwin (1991) Thermo- and photochromic dyes: indolino-benzospiropyrans. Part 1. UV–VIS spectroscopic studies of 1,3,3-spiro(2H-1-benzopyran-2,2′-indolines) and the open-chain merocyanine forms; solvatochromism and medium effects on spiro ring formation. Canadian Journal of Chemistry, 69 (12). 1940-1947 doi:10.1139/v91-279
In(1991, December) Canadian Journal of Chemistry Vol. 69 (12) Canadian Science Publishing

See Also

These are possibly similar items as determined by title/reference text matching only.

Cheon, Kap-Soo, Kazmaier, Peter M, Keum, Sam-Rok, Park, Kuk-Tae, Buncel, Erwin (2004) Azo-functionalized dendrimers. Canadian Journal of Chemistry, 82 (4). 551-566 doi:10.1139/v04-009
Wojtyk, James, McKerrow, Andrew, Kazmaier, Peter, Buncel, Erwin (1999) Quantitative investigations of the aggregation behaviour of hydrophobic anilino squaraine dyes through UV/vis spectroscopy and dynamic light scattering. Canadian Journal of Chemistry, 77 (5). 903-912 doi:10.1139/v99-073
McKerrow, Andrew J., Buncel, Erwin, Kazmaier, Peter M. (1995) Aggregation of squaraine dyes: Structure–property relationships and solvent effects. Canadian Journal of Chemistry, 73 (10). 1605-1615 doi:10.1139/v95-200
Buncel, Erwin, Keum, Sam-Rok, Rajagopal, Srinivasan, Kiepek, Eric, Cox, Robin A (2008) Wallach rearrangement of azoxypyridines and azoxypyridine N-oxides — Charge distributions and dramatic reactivity differences. Canadian Journal of Chemistry, 86 (4). 298-304 doi:10.1139/v08-016
Dust, Julian M., Buncel, Erwin (1991) Reactions of the super-electrophile, 2-(2′,4′-dinitrophenyl)-4,6-dinitrobenzotriazole 1-oxide, with methoxide and tert-butoxide: basicity and steric hindrance as factors in σ-complex formation versus nucleophilic displacement. Canadian Journal of Chemistry, 69 (6). 978-986 doi:10.1139/v91-143
Buncel, Erwin, Keum, Sam-Rok, Rajagopal, Srinivasan, Cox, Robin A. (2009) Rearrangement mechanisms for azoxypyridines and azoxypyridine N-oxides in the 100% H2SO4 region — The Wallach rearrangement story comes full circle. Canadian Journal of Chemistry, 87 (8). 1127-1134 doi:10.1139/v09-080
Cox, Robin A, Cheon, Kap-Soo, Keum, Sam-Rok, Buncel, Erwin (1998) Mechanism of the benzidine disproportionation of (arylhydrazo)pyridines. The reactions of 4-(4-chlorophenylazo)pyridine and -hydrazo)pyridine in acid media. Canadian Journal of Chemistry, 76 (6). 896-906 doi:10.1139/v98-082
Khamchukov, Yu. D., Luchina, V. G., Gradyushko, A. T., Marevtsev, V. S., Ermakova, E. D., Cherkashin, M. I., Linskii, V. A. (1986) Polarization of phosphorescence of open form of 1,3,3-trimethyl-6?-nitro-spiro (indoline-2,2?-[2H-1] benzopyran). Journal of Applied Spectroscopy, 44. 485-489 doi:10.1007/bf00667073
Pregel, Marko J., Buncel, Erwin (1991) Cyclodextrin-based enzyme models. Part 1. Synthesis of a tosylate and an epoxide derived from heptakis(6-O-tert-butyldimethylsilyl)-β-cyclodextrin and their characterization using 2D NMR techniques. An improved route to cyclodextrins functionalized on the secondary face. Canadian Journal of Chemistry, 69 (1). 130-137 doi:10.1139/v91-021
Wojtyk, James T. C., Kazmaier, Peter M., Buncel, Erwin (2001) Modulation of the Spiropyran−Merocyanine Reversion via Metal-Ion Selective Complexation: Trapping of the “Transient”cis-Merocyanine. Chemistry of Materials, 13. 2547-2551 doi:10.1021/cm010038q
McKerrow, Andrew J., Buncel, Erwin, Kazmaier, Peter M. (1993) Molecular modelling of photoactive pigments in the solid state: Investigations of polymorphism. Canadian Journal of Chemistry, 71 (3). 390-398 doi:10.1139/v93-058
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: June 7, 2026 12:40:37
Go to top of page