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- Jianping Zhao, I. Khan, F. Fronczek
- Materials Science, ChemistryActa crystallographica. Section E, Structure…
- 12 January 2011
Anhydrous 3,4,5-trihydroxybenzoic acid, C7H6O5, is essentially planar, with its non-H atoms exhibiting mean and maximum deviations from coplanarity of 0.014 and 0.0377 (5) Å, respectively. The…
Structure–Activity Relationship Studies on Derivatives of Eudesmanolides from Inula helenium as Toxicants against Aedes aegypti Larvae and Adults
An Aedes aegypti larval toxicity bioassay was performed on compounds representing many classes of natural compounds including polyacetylenes, phytosterols, flavonoids, sesquiterpenoid, and triterpenoids to understand the functional groups necessary for maintaining and/or increasing its activity, and to possibly lead to more effective insect‐control agents.
Phenylalkanoids and monoterpene analogues from the roots of Rhodiola rosea.
Phytochemical investigation of the roots of Rhodiola rosea afforded 17 compounds, belonging to the phenylalkanoids and monoterpene analogues, which were determined by spectroscopic and chemical methods.
Detection of homocysteine and cysteine.
- Weihua Wang, O. Rusin, R. Strongin
- Biology, ChemistryJournal of the American Chemical Society
- 21 October 2005
Simple methods for detecting either Hcy or Cys in the visible spectral region with the highest selectivity reported to date without using biochemical techniques or preparative separations are described.
Labdane diterpenoids from Leonurus sibiricus.
- Hankui Wu, F. Fronczek, D. Ferreira, C. Burandt, J. Zjawiony
- Chemistry, Environmental ScienceJournal of natural products
- 4 March 2011
Six new labdane diterpenoids were isolated from the leaves of Leonurus sibiricus and the absolute configurations of 1, 2, 5, and 6 were established by X-ray crystallographic analyses, and leosibirone A was shown to be an artifact of the isolation process.
LEUCINE-DERIVED NITRILE GLUCOSIDES IN THE ROSACEAE AND THEIR SYSTEMATIC SIGNIFICANCE*
A luminescent metal-organic framework with Lewis basic pyridyl sites for the sensing of metal ions.
A rare example of luminescent MOFs, which exhibit interesting catalytic activities for the transesterification and Knoevenagel condensation, attributed to pyridyl and amide sites, are reported, highlighting the significance of such Lewis basic sites within porous MOFs for their functional properties.
A double concave hydrocarbon buckycatcher.
- A. Sygula, F. Fronczek, R. Sygula, P. W. Rabideau, M. Olmstead
- ChemistryJournal of the American Chemical Society
- 10 March 2007
X-ray crystal structure determination of the inclusion complex with buckminsterfullerene C60 provides experimental evidence for the importance of attractive concave−convex π−π interactions in the supramolecular chemistry of fullerenes with buckybowls.
Synthesis and reactions of meso-(p-nitrophenyl)porphyrins
Seminaphthofluorones are a family of water-soluble, low molecular weight, NIR-emitting fluorophores
- Youjun Yang, Mark Lowry, R. Strongin
- ChemistryProceedings of the National Academy of Sciences
- 1 July 2008
Each of the new fluorophores described is a minimal template structure for evaluation of their basic spectral properties, which may be further functionalized and optimized yielding concomitant improvements in their photophysical properties.