środa, 30 czerwca 2010

Metal-induced gelation in dipyridyl ureas


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Metal-induced gelation in dipyridyl ureas


Peter Byrne, Gareth O. Lloyd, Lucas Applegarth, Kirsty M. Anderson, Nigel Clarke, Jonathan W. Steed

(Paper from New J. Chem.)

Peter Byrne, New J. Chem., 2010, DOI: 10.1039/c0nj00278j

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Synthesis, Characterization, and Binding Property of Isoelectronic Analogues...

 
 

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niedziela, 27 czerwca 2010

Ring Current Model and Anisotropic Magnetic Response of Cyclopropane


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Ring Current Model and Anisotropic Magnetic Response of Cyclopropane

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sobota, 26 czerwca 2010

Persistently Folded Circular Aromatic Amide Pentamers Containing Modularly T...

 
 

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piątek, 25 czerwca 2010

H-Bonding-Assisted Substituent Effect

 
 

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przez The Journal of Organic Chemistry: Latest Articles (ACS Publications) autor: Tadeusz M. Krygowski et al dnia 10-06-24

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czwartek, 24 czerwca 2010

NIR-laser-induced selective rotamerization of hydroxy conformers of cytosine

 
 

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przez RSC - Phys. Chem. Chem. Phys. latest articles autor: Rui Fausto dnia 10-06-24

Leszek Lapinski, Maciej J. Nowak, Igor Reva, Hanna Rostkowska, Rui Fausto
(Communication from Phys. Chem. Chem. Phys.)
Leszek Lapinski, Phys. Chem. Chem. Phys., 2010, DOI: 10.1039/c0cp00177e
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środa, 23 czerwca 2010

A fully complementary, high-affinity receptor for phosphate and sulfate base...

 
 

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przez RSC - Chem. Commun. latest articles autor: Xiao-Juan Yang dnia 10-06-23

Chuandong Jia, Biao Wu, Shaoguang Li, Zaiwen Yang, Qilong Zhao, Jianjun Liang, Qian-Shu Li, Xiao-Juan Yang
(Communication from Chem. Commun.)
Chuandong Jia, Chem. Commun., 2010, DOI: 10.1039/c0cc00937g
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Selective Covalent Labeling of Tag-Fused GPCR Proteins on Live Cell Surface ...

 
 

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wtorek, 22 czerwca 2010

Halogen bonding: an electrostatically-driven highly directional noncovalent ...

 
 

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przez RSC - Phys. Chem. Chem. Phys. latest articles autor: Timothy Clark dnia 10-06-22

Peter Politzer, Jane S. Murray, Timothy Clark
(Perspective from Phys. Chem. Chem. Phys.)
Peter Politzer, Phys. Chem. Chem. Phys., 2010, DOI: 10.1039/c004189k
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The impact of accessible surface on hydrogen bond formation

 
 

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przez RSC - CrystEngComm latest articles autor: Peter T. A. Galek dnia 10-06-22

Peter A. Wood, Peter T. A. Galek
(Paper from CrystEngComm)
Peter A. Wood, CrystEngComm, 2010, DOI: 10.1039/b926745j
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Role of the Medium on the C343 Inter/Intramolecular Hydrogen Bond Interactio...

 
 

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Multiple Hydrogen-Bond-Mediated Molecular Duplexes Based on the Self-Complementary Amidourea Motif


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Multiple Hydrogen-Bond-Mediated Molecular Duplexes Based on the Self-Complementary Amidourea Motif

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poniedziałek, 21 czerwca 2010

Carboxylate Tolerance of the Redox-Active Platform [Ru(μ-tppz)Ru]n, where tp...

 
 

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Flexible "piperazine-pyrazine" building blocks: conformational isomerism of ...

 
 

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przez RSC - CrystEngComm latest articles autor: Kuang-Lieh Lu dnia 10-06-21

Shu-Chun Hsu, Jing-Yun Wu, Chin-Fen Lee, Chung-Chou Lee, Long-Li Lai, Kuang-Lieh Lu
(Communication from CrystEngComm)
Shu-Chun Hsu, CrystEngComm, 2010, DOI: 10.1039/c001735c
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czwartek, 17 czerwca 2010

NMR Spectroscopic Parameters of Molecular Systems with Strong Hydrogen Bonds

 
 

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przez The Journal of Physical Chemistry A: Latest Articles (ACS Publications) autor: Natalia Zarycz et al dnia 10-06-16

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środa, 16 czerwca 2010

1,8,1′,8′-Tetrakis(dimethylamino)-2,2′-dinaphthylmethanols: Double In/Out Pr...

 
 

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przez The Journal of Organic Chemistry: Latest Articles (ACS Publications) autor: Alexander F. Pozharskii et al dnia 10-06-14

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Proof for the Concerted Inversion Mechanism in the trans→cis Isomerization o...

 
 

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przez The Journal of Organic Chemistry: Latest Articles (ACS Publications) autor: H. M. Dhammika Bandara et al dnia 10-06-14

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Room Temperature, Copper-Catalyzed Amination of Bromonaphthyridines with Aqu...

 
 

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przez The Journal of Organic Chemistry: Latest Articles (ACS Publications) autor: Cyrus A. Anderson et al dnia 10-06-15

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poniedziałek, 14 czerwca 2010

Expanding the Scope of Metal-Free Catalytic Hydrogenation through Frustrated Lewis Pair Design


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Expanding the Scope of Metal-Free Catalytic Hydrogenation through Frustrated Lewis Pair Design

No metal causes frustration: Based on a conceptual framework, novel frustrated Lewis acid-base catalyst systems with orthogonal reactivity have been developed. Aside from enhanced functional-group tolerance, unique chemoselectivity can be achieved in catalytic metal-free hydrogenations (see scheme).


B

Electronic energy transfer


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Electronic energy transfer



(Editorial from Phys. Chem. Chem. Phys.)

Phys. Chem. Chem. Phys., 2010, DOI: 10.1039/c0cp90032j

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niedziela, 13 czerwca 2010

DFT calculations on the deprotonation site of the one-electron oxidised guan...

 
 

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przez RSC - Phys. Chem. Chem. Phys. latest articles autor: Johannes Reynisson dnia 10-06-08

Steen Steenken, Johannes Reynisson
(Paper from Phys. Chem. Chem. Phys.)
Steen Steenken, Phys. Chem. Chem. Phys., 2010, DOI: 10.1039/c002528c
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A Robust Thiourea Synthon for Crystal Engineering

 
 

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przez Crystal Growth & Design: Latest Articles (ACS Publications) autor: Kathryn Paisner et al dnia 10-06-10

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Synthesis and Structures of


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Synthesis and Structures of
1,10-Phenanthroline-Based Extended Triptycene Derivatives

Synlett
DOI: 10.1055/s-0029-1219957



Abstract

A series of novel 1,10-phenanthroline-based extended triptycene
derivatives were conveniently synthesized in good yields, and their
structures were determined by H NMR, C
NMR, MALDI-TOF MS spectra, and elemental analysis.
[...]

© Georg Thieme Verlag
Stuttgart ˙ New York

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Efficient Synthesis of Phenanthridines


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Efficient Synthesis of Phenanthridines
Using Hendrickson Reagent Initiated Cascade Reaction under Mild
Conditions

Synlett
DOI: 10.1055/s-0030-1258081



Abstract

A number of variously substituted phenanthridines have been synthesized
using the newly developed methodology under mild conditions. The
Hendrickson reagent initiated cascade annulation, which is composed
of a mild conversion of stable amide precursor to highly reactive
imido-carbonium intermediate and a subsequent intramolecular Friedel-Crafts
reaction, successfully served as the key method.
[...]

© Georg Thieme Verlag
Stuttgart ˙ New York

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The self-assembly of six-petal microflowers by hydrogen bonded shape-persistent triangular aromatic hydrazide derivatives


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The self-assembly of six-petal microflowers by hydrogen bonded shape-persistent triangular aromatic hydrazide derivatives

Publication year: 2010
Source: Tetrahedron Letters, In Press, Accepted Manuscript, Available online 9 June 2010
Jian-Bin, Lin , Gui-Tao, Wang , Xi-Kui, Jiang , Zhan-Ting, Li
Six-petal microflowers have been self-assembled in methanol from C3-symmetric shape-persistent triangular aromatic hydrazide derivatives. Nine intramolecular hydrogen bonds are used to enhance the planarity of the aromatic backbone, while six 2-(2-(2-methoxyethoxy)ethoxy)ethoxyl groups are appended to the rigid aromatic backbone. Scanning electron microscopy (SEM) images show that the molecules form unique six-petal flower-like aggregates in methanol. A self-assembling mechanism that is similar to the formation of snowflakes has been proposed. © 2010 Elsevier Science.

Graphical abstract


image


B

Pseudo four-component synthesis of benzopyranopyrimidines


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Pseudo four-component synthesis of benzopyranopyrimidines

Publication year: 2010
Source: Tetrahedron Letters, In Press, Accepted Manuscript, Available online 9 June 2010
Ramin, Ghahremanzadeh , Tayebeh, Amanpour , Ayoob, Bazgir
An efficient and simple method for the synthesis of new benzopyranopyrimidines via a pseudo four-component reaction of salicylic aldehydes, malononitrile and various amines in the presence of a catalytic amount of LiClO4 is reported. The advantages of this procedure are mild reaction conditions, high yields of products, and operational simplicity.

Graphical abstract

sdfd
image


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sobota, 12 czerwca 2010

Pictorial representation and validation of Clar's aromatic sextet theory using molecular electrostatic potentials


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Pictorial representation and validation of Clar's aromatic sextet theory using molecular electrostatic potentials


Kunduchi Periya Vijayalakshmi, Cherumuttathu H. Suresh

(Paper from New J. Chem.)

Kunduchi Periya Vijayalakshmi, New J. Chem., 2010, DOI: 10.1039/c0nj00177e

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Asymmetric PPCys: Strongly fluorescing NIR labels


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Asymmetric PPCys: Strongly fluorescing NIR labels


Georg Michael Fischer, Christian Jungst, Magnus Isomaki-Krondahl, Dominik Gauss, Heiko Michael Moller, Ewald Daltrozzo, Andreas Zumbusch

(Communication from Chem. Commun.)

Georg Michael Fischer, Chem. Commun., 2010, DOI: 10.1039/c0cc00359j

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Visual and light scattering spectrometric detections of melamine with polythymine-stabilized gold nanoparticles through specific triple hydrogen-bonding recognition


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Visual and light scattering spectrometric detections of melamine with polythymine-stabilized gold nanoparticles through specific triple hydrogen-bonding recognition


Wen Jing Qi, Di Wu, Jian Ling, Cheng Zhi Huang

(Communication from Chem. Commun.)

Wen Jing Qi, Chem. Commun., 2010, DOI: 10.1039/c0cc00886a

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Photochemically driven intercalation of small molecules into DNA by in situ irradiation


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Photochemically driven intercalation of small molecules into DNA by in situ irradiation


Maria Letizia Di Pietro, Fausto Puntoriero, Fabien Tuyeras, Philippe Ochsenbein, Philippe P. Laine, Sebastiano Campagna

(Communication from Chem. Commun.)

Maria Letizia Di Pietro, Chem. Commun., 2010, DOI: 10.1039/c002748k

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Bond Paths Show Preferable Interactions: Ab Initio and QTAIM Studies on the X−H···π Hydrogen Bond


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Bond Paths Show Preferable Interactions: Ab Initio and QTAIM Studies on the X−H···π Hydrogen Bond

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Selective Addition of Organolithium Reagents to BF2-Chelates of β-Ketoesters


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Selective Addition of Organolithium Reagents to BF2-Chelates of β-Ketoesters

Organic Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable).


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Oligoamide Duplexes as Organogelators


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Oligoamide Duplexes as Organogelators

Organic Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable).


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czwartek, 10 czerwca 2010

Aza-bridged bis-1,10-phenanthroline acyclic derivatives: synthesis, structur...

 
 

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Publication year: 2010
Source: Tetrahedron Letters, In Press, Accepted Manuscript, Available online 31 May 2010
Hsien-Chang, Kao , Chia-Jung, Hsu , Che-Wei, Hsu , Chien-Ho, Lin , Wen-Jwu, Wang
A family of acyclic aza-bridged bis-1,10-phenanthroline compounds has been synthesized in a convenient way. The resulting compounds 2 and 2·HCl were fully characterized and their solid-state structures and NMR spectroscopic properties were investigated to assess how the structural units affect the alkylation reactions. The results reveal the transoid structure for 2. The broadening NMR peak in 2 is shown to due to an unusual intramolecular CH…N hydrogen bond. This unique conformation offers an efficient and regioselective method to prepare the amino-substituted bis-2,2'-1,10-phenanthroline derivatives and 1,10-phenanthrolino-N-alkylated compounds.

Graphical abstract

An efficient and regioselective method was developed to prepare the amino-substituted bis-1,10-phenanthroline derivatives and 1,10-phenanthrolino-N-alkylated compounds. X-ray and NMR investigations reveal the transoid structure for 2, where the unusual intramolecular CH…N hydrogen bond was shown.
image

 
 

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Synthesis, structural and conformational analysis of a 3 [times] 3 isomer gr...

 
 

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przez RSC - CrystEngComm latest articles autor: John F. Gallagher dnia 10-06-09

Pavle Mocilac, Mark Tallon, Alan J. Lough, John F. Gallagher
(Paper from CrystEngComm)
Pavle Mocilac, CrystEngComm, 2010, DOI: 10.1039/c002986f
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wtorek, 8 czerwca 2010

Dipyridyl [small beta]-diketonate complexes: versatile polydentate metalloligands for metal-organic frameworks and hydrogen-bonded networks


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Dipyridyl [small beta]-diketonate complexes: versatile polydentate metalloligands for metal-organic frameworks and hydrogen-bonded networks


Andrew D. Burrows, Christopher G. Frost, Mary F. Mahon, Paul R. Raithby, Catherine L. Renouf, Christopher Richardson, Anna J. Stevenson

(Communication from Chem. Commun.)

Andrew D. Burrows, Chem. Commun., 2010, DOI: 10.1039/c0cc00646g

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niedziela, 6 czerwca 2010

8-PropargylaminoBODIPY: unprecedented blue-emitting pyrromethene dye. Synthe...

 
 

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przez RSC - Chem. Commun. latest articles autor: Eduardo Pena-Cabrera dnia 10-06-03

C. F. Azael Gomez-Duran, Inmaculada Garcia-Moreno, Angel Costela, Virginia Martin, Roberto Sastre, Jorge Banuelos, Fernando Lopez Arbeloa, Inigo Lopez Arbeloa, Eduardo Pena-Cabrera
(Communication from Chem. Commun.)
C. F. Azael Gomez-Duran, Chem. Commun., 2010, DOI: 10.1039/c0cc00397b
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Manipulation of electronic structure via supporting ligands: a charge dispro...

 
 

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przez RSC - Chem. Commun. latest articles autor: Shie-Ming Peng dnia 10-06-04

Shao-An Hua, Gin-Chen Huang, Isiah Po-Chun Liu, Jau-Huei Kuo, Ching-Hong Jiang, Chien-Lan Chiu, Chen-Yu Yeh, Gene-Hsiang Lee, Shie-Ming Peng
(Communication from Chem. Commun.)
Shao-An Hua, Chem. Commun., 2010, DOI: 10.1039/b926315b
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Disappearing and Concomitant Polymorphism of Nickel(II) Complexes with 6-Hyd...

 
 

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przez Crystal Growth & Design: Latest Articles (ACS Publications) autor: Boris-Marko Kukovec et al dnia 10-06-04

Crystal Growth & Design, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable).

 
 

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pH-Responsive Molecular Tweezers

 
 

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sobota, 5 czerwca 2010

piątek, 4 czerwca 2010

środa, 2 czerwca 2010

Inclusion complexes of buckycatcher with C60 and C70

 
 

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przez RSC - Phys. Chem. Chem. Phys. latest articles autor: Andrzej Sygula dnia 10-06-01

Christian Muck-Lichtenfeld, Stefan Grimme, Lesya Kobryn, Andrzej Sygula
(Paper from Phys. Chem. Chem. Phys.)
Christian Muck-Lichtenfeld, Phys. Chem. Chem. Phys., 2010, DOI: 10.1039/b925849c
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Charge Density Analysis of Crystals of Nicotinamide with Salicylic Acid and ...

 
 

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przez Crystal Growth & Design: Latest Articles (ACS Publications) autor: Venkatesha R. Hathwar et al dnia 10-06-01

Crystal Growth & Design, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable).

 
 

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Synthesis and Evaluation of Chiral Selectors with Multiple Hydrogen-Bonding ...

 
 

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