Search results
Results From The WOW.Com Content Network
Eric V. Anslyn (born June 9, 1960, Santa Monica, California) is an American chemist , University Distinguished Teaching Professor, and Welch Regents Chair in Chemistry at the University of Texas at Austin. [1] He previously held the Norman Hackerman Professorship [citation needed]. Anslyn is co-author of Modern Physical Organic Chemistry, an ...
Thiophene is a heterocyclic compound with the formula C 4 H 4 S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions. ...
A non-bonding orbital, also known as non-bonding molecular orbital (NBMO), is a molecular orbital whose occupation by electrons neither increases nor decreases the bond order between the involved atoms.
For example, butane has three conformers relating to its two methyl (CH 3) groups: two gauche conformers, which have the methyls ±60° apart and are enantiomeric, and an anti conformer, where the four carbon centres are coplanar and the substituents are 180° apart (refer to free energy diagram of butane).
In supramolecular chemistry, [1] host–guest chemistry describes complexes that are composed of two or more molecules or ions that are held together in unique structural relationships by forces other than those of full covalent bonds. Host–guest chemistry encompasses the idea of molecular recognition and interactions through non-covalent ...
The chemosensors is not emissive in its 'free' form A, but upon recognition of the phosphate by the polyamine receptor moiety (through mixture of electrostatic and hydrogen bonding interactions) B, the fluorescence emission is gradually enhanced, resulting eventually in the formation of a highly fluorescent (host:guest) structure C.
This difference can be attributed to the longer length of the carbon–silicon bond as compared to the carbon–carbon bond of the tert-butyl group. The longer bond allows for less interactions with neighboring substituents, which effectively makes the trimethylsilyl group less sterically hindering, thus, lowering its A-value. [ 2 ]
free radical initiated photo cross-linking of polymers; Issues: potential oxygen inhibition; swelling during development long narrow lines can become wavy; swelling is an issue for high-resolution patterning; Example: SU-8 (epoxy-based polymer), good adhesion), Kodak Photoresist (KPR) Modulation transfer function