scholarly journals On Kissing Numbers in Dimensions 32 to 128

10.37236/1360 ◽  
1998 ◽  
Vol 5 (1) ◽  
Author(s):  
Yves Edel ◽  
E. M. Rains ◽  
N. J. A. Sloane

An elementary construction using binary codes gives new record kissing numbers in dimensions from 32 to 128.

1910 ◽  
Vol 70 (1816supp) ◽  
pp. 264-264
Author(s):  
Arthur E. Joerin
Keyword(s):  

1932 ◽  
Vol 147 (05) ◽  
pp. 276-277
Author(s):  
V. R. Covell
Keyword(s):  

2017 ◽  
Vol 43 (6) ◽  
pp. 644-648
Author(s):  
César A. Salinas-Zavala ◽  
María V. Morales-Zárate ◽  
Andrés González-Peralta ◽  
Rosa J. Aviña-Hernández ◽  
Mariana L. Muzquiz-Villalobos

2005 ◽  
Vol 30 ◽  
pp. 176
Author(s):  
Diego Moreno ◽  
Julio De la Rosa ◽  
Pedro Sánchez Castillo ◽  
Antonio Flores-Moya

A new record of Phyllariopsis purpurascens (C. Agardh) Henry et South from AlmeríaPalabras clave. Phyllariopsis, corología, Península Ibérica.Key words. Phyllariopsis, geographical distribution, Iberian Peninsula.


2020 ◽  
Author(s):  
Xingxing Wu ◽  
Reto M. Witzig ◽  
Rodolphe Beaud ◽  
Christian Fischer ◽  
Daniel Häussinger ◽  
...  

Governing higher-order stereogenicity is a long-standing goal in stereoselective catalysis, because it allows to achieve selectivity for more than a twofold number of stereoisomers per stereogenic unit. Current methods warrant control over the power of two stereoisomers and the configurations are routinely assigned using the descriptors ( R ) and ( S ), or related binary codes. In contrast, conformational analysis ranges beyond this dualistic treatment of stereoisomerism, which constitutes an unmet challenge for catalyst stereocontrolled processes. Herein, we now report that sixfold stereogenicity can be governed by stereoselective catalysis. By controlling a configurationally stable stereogenic axis with six large rotational barriers, a catalytic [2+2+2]-cyclotrimerization selectively governs the formation of one out of six stereoisomers with up to 0:0:2:98:0:0 stereocontrol. The underpinnings of conformational analysis and stereoselective catalysis are thereby conceptually reunited. Novel molecular architectures featuring distinct chemical topologies and unexplored chemical designs are anticipated from catalystcontrol over higher-order stereogenicities


2018 ◽  
Vol 70 (1) ◽  
pp. 103-108
Author(s):  
A.R. Rafidah ◽  
◽  
A.R. Ummul-Nazrah ◽  
M.A. Mohd Hairul ◽  
◽  
...  

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