Search

Results: 3556
catena-Poly triphenyltin(IV) -mu-phenylphosphinato-kappa(2)O
In the structure of the title coordination polymer, [Sn(C(6)H(5))(3)-(C(6)H(6)O(2)P)](n) or [PhP(H)O(2)Sn(IV)(Ph)(3)](n), the Sn(IV) atom is five-coordinate, with the SnC(3)O(2) framework in a trans trigonal-bipyramidal...
Published by:
catena-Poly triphenyltin(IV) -mu-phenylphosphinato-kappa(2)O
In the structure of the title coordination polymer, [Sn(C(6)H(5))(3)-(C(6)H(6)O(2)P)](n) or [PhP(H)O(2)Sn(IV)(Ph)(3)](n), the Sn(IV) atom is five-coordinate, with the SnC(3)O(2) framework in a trans trigonal-bipyramidal...
Published by:
Copper malonamide complexes and their use in azide-alkyne cycloaddition reactions
We report a rare example of the malonamide functionality being used as a ligand in copper catalysis. We have ligated a homologous series of these O,O-chelating architectures to copper, investigated their structure and exploited...
Published by:
From a Weightless Bent Wire Coat Hanger to Shell Structures via the Beltrami Stress Tensor
A weightless wire coat hanger bent out of its plane is one of the simplest possible structures. All it does is transfer a force and moment around a closed space curve. Assembling a family of coat hangers enables us to build up...
Published by:
Copper malonamide complexes and their use in azide-alkyne cycloaddition reactions
We report a rare example of the malonamide functionality being used as a ligand in copper catalysis. We have ligated a homologous series of these O,O-chelating architectures to copper, investigated their structure and exploited...
Published by:
From a Weightless Bent Wire Coat Hanger to Shell Structures via the Beltrami Stress Tensor
A weightless wire coat hanger bent out of its plane is one of the simplest possible structures. All it does is transfer a force and moment around a closed space curve. Assembling a family of coat hangers enables us to build up...
Published by:
Louis O. Kunkel, 1932
Dr. L. O. Kunkel. Similarities Between the Diseases of the Vegetable Kingdom and Those of Man and Animals Lecture delivered November 17th, 1932 Posted with permission
Vacuum Ultraviolet Fourier-transform Spectroscopy of <sup>16</sup>O and <sup>18</sup>O
Abstract A spectroscopic study of atomic oxygen (O i) is performed using the Fourier-transform vacuum ultraviolet (VUV) spectrometer at the Dichroïsme Et...
Published by:
Formyloxyacetoxyphenylmethane and 1,1-diacylals as versatile O-formylating and O-acylating reagents for alcohols
Formyloxyacetoxyphenylmethane, symmetric 1,1-diacylals and mixed 1-pivaloxy-1-acyloxy-1-phenylmethanes have been used as moisture stable O-formylating and O-acylating reagents for primary and secondary alcohols, allylic alcohols...
Published by:
Formyloxyacetoxyphenylmethane and 1,1-diacylals as versatile O-formylating and O-acylating reagents for alcohols
Formyloxyacetoxyphenylmethane, symmetric 1,1-diacylals and mixed 1-pivaloxy-1-acyloxy-1-phenylmethanes have been used as moisture stable O-formylating and O-acylating reagents for primary and secondary alcohols, allylic alcohols...
Published by:
Tolerant pattern recognition
When the amplitude modulation of species-specific acoustic signals is distorted in the transmission channel, signals become difficult to recognize by the receiver. Tolerant auditory pattern recognition systems, which after...
Spectral Gap in Mean-Field O(n) -Model
S Becker, A Menegaki
Nov 17, 2020
AbstractWe study the dependence of the spectral gap for the generator of the Ginzburg–Landau dynamics for all$$\mathcal...
Published by:
Ruthenium-catalyzed <i>O</i>- to S-alkyl migration

A practical ruthenium-catalyzed O- to S-alkyl migration affords structurally diverse thiooxazolidinones in excellent yields. Our studies suggest this catalytic transformation proceeds through a pseudoreversible radical...

Published by:
Precise control of Cu$_2$O nanostructures and LED-assisted photocatalysis
Y Su, A Nathan, H Ma, H Wang
Oct 18, 2016
We describe the synthesis and characterization of a high-efficiency visible light Cu$_2$O photocatalyst. Uniform cubic, octahedral and rhombic dodecahedral Cu$_2$O nanocrystals with a size of 300–600 nm were synthesized using a...
Published by:
Short-Term Response of Cytosolic N O 3 − to Inorganic Carbon Increase in Posidonia oceanica Leaf Cells
The concentration of CO2 in the atmosphere has increased over the past 200 years and is expected to continue rising in the next 50 years at a rate of 3 ppm·year−1. This increase has led to a decrease in seawater pH that has...
Published by:
Short-Term Response of Cytosolic N O 3 - to Inorganic Carbon Increase in Posidonia oceanica Leaf Cells.
The concentration of CO2 in the atmosphere has increased over the past 200 years and is expected to continue rising in the next 50 years at a rate of 3 ppm·year-1. This increase has led to a decrease in seawater pH that has...
Published by:
Ruthenium-catalyzed <i>O</i>- to S-alkyl migration

A practical ruthenium-catalyzed O- to S-alkyl migration affords structurally diverse thiooxazolidinones in excellent yields. Our studies suggest this catalytic transformation proceeds through a pseudoreversible radical...

Published by:
Improved bounds for the Erdős-Rogers function
WT Gowers, O Janzer
Apr 14, 2020
The Erd\H{o}s-Rogers function $f_{s,t}$ measures how large a $K_s$-free induced subgraph there must be in a $K_t$-free graph on $n$ vertices. While good estimates for $f_{s,t}$ are known for some pairs $(s,t)$, notably...
Published by:
Horizontally acquired divergent O-antigen contributes to escape from cross-immunity in the classical bordetellae
Background:
Horizontal gene transfer (HGT) allows for rapid spread of genetic material between species, increasing genetic and phenotypic diversity. Although HGT contributes to adaptation and is widespread in many bacteria...
Published by:

|<

<

1

2

3

4

5

>

>|