Literature DB >> 16235935

Dynamic NMR study of the hindered Pt-N(bipyridine) rotation in metal-directed self-assembled macrocycles.

Gábor Tárkányi1, Hershel Jude, Gábor Pálinkás, Peter J Stang.   

Abstract

[reaction: see text] The activation parameters for the hindered Pt-N(bipyridyl) rotation observed for a self-assembled rectangle and triangle have been investigated by temperature-dependent and selective inversion recovery (SIR) NMR spectroscopy. The enthalpy of activation (DeltaH) and change in entropy (DeltaS) were determined to be +52.2 kJ/mol and -58.2 J/mol.K for the rectangle and +59.1 kJ/mol and -71.8 J/mol.K for the triangle, respectively, by SIR.

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Year:  2005        PMID： 16235935     DOI： 10.1021/ol051910u

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  6 in total

1.  Structures of metallosupramolecular coordination assemblies can be obtained by ion mobility spectrometry-mass spectrometry.

Authors:  Erin R Brocker; Stanley E Anderson; Brian H Northrop; Peter J Stang; Michael T Bowers
Journal:  J Am Chem Soc       Date:  2010-09-29       Impact factor: 15.419

2.  Coordination-driven self-assembly of M3L2 trigonal cages from preorganized metalloligands incorporating octahedral metal centers and fluorescent detection of nitroaromatics.

Authors:  Ming Wang; Vaishali Vajpayee; Sankarasekaran Shanmugaraju; Yao-Rong Zheng; Zhigang Zhao; Hyunuk Kim; Partha Sarathi Mukherjee; Ki-Whan Chi; Peter J Stang
Journal:  Inorg Chem       Date:  2011-01-07       Impact factor: 5.165

3.  Construction of endo-functionalized two dimensional metallacycles via coordination-driven self-assembly.

Authors:  Liang Zhao; Koushik Ghosh; Yao-Rong Zheng; Peter J Stang
Journal:  J Org Chem       Date:  2009-11-20       Impact factor: 4.354

4.  Self-selection in the self-assembly of isomeric supramolecular squares from unsymmetrical bis(4-pyridyl)acetylene ligands.

Authors:  Liang Zhao; Brian H Northrop; Yao-Rong Zheng; Hai-Bo Yang; Hyo Jin Lee; Young Min Lee; Joo Yeon Park; Ki-Whan Chi; Peter J Stang
Journal:  J Org Chem       Date:  2008-08-07       Impact factor: 4.354

5.  Coordination-driven face-directed self-assembly of trigonal prisms. Face-based conformational chirality.

Authors:  Douglas C Caskey; Takuya Yamamoto; Chris Addicott; Richard K Shoemaker; Jaroslav Vacek; Adam M Hawkridge; David C Muddiman; Gregg S Kottas; Josef Michl; Peter J Stang
Journal:  J Am Chem Soc       Date:  2008-05-21       Impact factor: 15.419

6.  From solvolysis to self-assembly.

Authors:  Peter J Stang
Journal:  J Org Chem       Date:  2009-01-02       Impact factor: 4.354
  6 in total

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