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Polarized Infrared Spectra of Benzene Derivatives

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The Ansacarbamitocins: Polar Ansamitocin Derivatives

Journal of Natural Products, 2007
The ansacarbamitocins are a new family of maytansinoids that are unusually substituted with a glucose subunit and two carbamate functional groups and exhibit modest activity against some agricultural fungal disease organisms. Ansacarbamitocins A-F ( 1- 6) all consist of the same macrocyclic core as the ansamitocins, with variation occurring on the ...
Carl E, Snipes   +9 more
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Polarization energies of tetrathiafulvalene derivatives

Chemical Physics, 1981
Abstract Ultraviolet photoelectron spectroscopic studies were carried out on dimethyl-, tetramethyl- and dibenzo-derivatives of tetrathiafulvalene in the gaseous and solid state. As the difference between the threshold ionization potentials in both states, we obtained the polarization energies of those compounds in the solid state ...
Naoki Sato   +2 more
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Loci of complex polynomials, part II: polar derivatives

Mathematical Proceedings of the Cambridge Philosophical Society, 2015
AbstractFor every complex polynomialp(z), closed point sets are defined, calledlociofp(z). A closed set Ω ⊆${\mathbb C}$* is a locus ofp(z) if it contains a zero of any of its apolar polynomials and is the smallest such set with respect to inclusion. Using the notion locus, some classical theorems in the geometry of polynomials can be refined.
Sendov, Blagovest, Sendov, Hristo
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Derivation is a polarity

Journal of Geometry, 1989
This paper is one in a series of three in which the author generalizes Ostrom's definition of derivation such that there is a 1-1-correspondence to the pairs consisting of a 3-dimensional projective space P and a special line N in it: Points of the derivable net are those lines of P that don't meet N, \(P\setminus N\) is the set of lines, two such ...
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