Comparative study on CdSe QDs synthesized from water and ethanol: Hydrogen bond induced particle agglomeration and enhancement on photoluminescence

The Analyst ◽  
2013 ◽  
Vol 138 (5) ◽  
pp. 1570 ◽  
Author(s):  
Weiguo Tian ◽  
Wen Mi ◽  
Jintao Tian ◽  
Jinqian Jia ◽  
Xiaoyun Liu ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Comparative Study ◽  
Particle Agglomeration ◽  
Cdse Qds

Cooperative interaction between hydrogen bond and N···Y interactions (Y = H, Li, F, Cl, and Br): a comparative study

2015 ◽  
Vol 93 (6) ◽  
pp. 626-631
Author(s):  
Zahra Fallah Ebrahimi ◽  
Mehdi D. Esrafili ◽  
Esmail Vessally
Keyword(s):  
Hydrogen Bond ◽  
Comparative Study ◽  
Ab Initio ◽  
Halogen Bond ◽  
Cooperative Interaction ◽  
Ab Initio Study ◽  
Absolute Value ◽  
Lithium Bond ◽  
Cooperative Energy

A comparative ab initio study is performed to investigate the cooperativity between the N···H hydrogen bond and the N···Y interactions in XCN···HCN···YCN complexes, where X = H, F, and Y = H, Li, F, Cl, and Br. To understand the properties of the systems better, the corresponding dimers are also studied. It is found that the lithium bond has a larger influence on the hydrogen bond than vice versa. The shortening of the N···H distances in the trimers is dependent on the strength of the H···Y interactions and they become larger in the order lithium bond > hydrogen bond > halogen bond. The estimated values of cooperative energy Ecoop are all negative with much larger Ecoop in absolute value for the systems including lithium.

Comparative Study of Halogen- and Hydrogen-Bond Interactions between Benzene Derivatives and Dimethyl Sulfoxide

ChemPhysChem ◽  
2015 ◽  
Vol 16 (12) ◽  
pp. 2594-2601 ◽  
Author(s):  
Yan-Zhen Zheng ◽  
Geng Deng ◽  
Yu Zhou ◽  
Hai-Yuan Sun ◽  
Zhi-Wu Yu
Keyword(s):  
Hydrogen Bond ◽  
Comparative Study ◽  
Dimethyl Sulfoxide ◽  
Benzene Derivatives ◽  
Hydrogen Bond Interactions

Separation of C-glycoside Flavonoids from Aleurites moluccana Using Chitin and Full N-acetylated Chitin

2002 ◽  
Vol 57 (9-10) ◽  
pp. 957-959 ◽  
Author(s):  
Michele Morsch ◽  
Leury G. J. Girardi ◽  
Valdir Cechinel-Filho ◽  
Christiane Meyre-Silva ◽  
Clóvis Antonio Rodrigues
Keyword(s):  
Hydrogen Bond ◽  
Comparative Study ◽  
Stationary Phase ◽  
Silica Gel ◽  
Aleurites Moluccana

This paper describes a comparative study using different chromatographic supports (fully N-acetylated chitin, chitin and silica gel) to separate the flavonoids swertisin and 2″-O-rhamnosylswertisin from Aleurites moluccana. The results show that the flavonoids have apparently been separated by the hydrogen bond between the stationary phase (chitin and chitin-100) and flavonoids under the conditions studied.

Comparative study on confinement effects of graphene and graphene oxide on structure and dynamics of water

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 39330-39341 ◽  
Author(s):  
Meymanat Zokaie ◽  
Masumeh Foroutan
Keyword(s):  
Hydrogen Bond ◽  
Graphene Oxide ◽  
Comparative Study ◽  
Water Molecules ◽  
Hydroxyl Groups ◽  
Confinement Effects ◽  
Structure And Dynamics

A snapshot of the formation of hydrogen bond between water molecules and the hydroxyl groups of the graphene oxide. Red, blue, and green colors correspond to oxygen, hydrogen, and carbon atoms, respectively. Dashed line show the hydrogen bond.

Sign in / Sign up

Export Citation Format

Share Document