[Rh(C7H8)(PPh3)Cl]: an experimental charge-density study

2008 ◽  
Vol 64 (5) ◽  
pp. 550-557 ◽  
Author(s):  
Hazel A. Sparkes ◽  
Simon K. Brayshaw ◽  
Andrew S. Weller ◽  
Judith A. K. Howard

In order to gain a deeper understanding into the bonding situation in rhodium complexes containing rhodium–carbon interactions, the experimental charge-density analysis for [Rh(C7H8)(PPh3)Cl] (1) is reported. Accurate, high-resolution (sin θ/λ = 1.08 Å−1), single-crystal data were obtained at 100 K. The results from the investigation were interesting in relation to the interactions between the rhodium metal centre and the norbornadiene fragment and illustrate the importance of such analyses in studying bonding in organometallic complexes.

2010 ◽  
Vol 66 (5) ◽  
pp. 503-514 ◽  
Author(s):  
Hazel A. Sparkes ◽  
Adrian B. Chaplin ◽  
Andrew S. Weller ◽  
Judith A. K. Howard

Rhodium complexes have potential uses in both catalysis and promoting the cleavage of C—C bonds. In order to further our understanding of these species and their potential applications, it is vital to obtain insight into the bonding within the species, particularly the Rh—C interactions, and to this end experimental charge-density studies have been undertaken on the title complexes. High-resolution single-crystal datasets to sin θ/λ = 1.06 Å−1 were obtained at 100 K and analysed using Bader's `Atoms in Molecules' (AIM) approach. The results of the studies have provided unique insights into the bonding involving rhodium and highlight the importance of undertaking such investigations for transition metal compounds.


Author(s):  
Zhijie Chua ◽  
Bartosz Zarychta ◽  
Christopher G. Gianopoulos ◽  
Vladimir V. Zhurov ◽  
A. Alan Pinkerton

A high-resolution X-ray diffraction measurement of 2,5-dichloro-1,4-benzoquinone (DCBQ) at 20 K was carried out. The experimental charge density was modeled using the Hansen–Coppens multipolar expansion and the topology of the electron density was analyzed in terms of the quantum theory of atoms in molecules (QTAIM). Two different multipole models, predominantly differentiated by the treatment of the chlorine atom, were obtained. The experimental results have been compared to theoretical results in the form of a multipolar refinement against theoretical structure factors and through direct topological analysis of the electron density obtained from the optimized periodic wavefunction. The similarity of the properties of the total electron density in all cases demonstrates the robustness of the Hansen–Coppens formalism. All intra- and intermolecular interactions have been characterized.


2014 ◽  
Vol 53 (10) ◽  
pp. 2766-2770 ◽  
Author(s):  
Benedikt Niepötter ◽  
Regine Herbst-Irmer ◽  
Daniel Kratzert ◽  
Prinson P. Samuel ◽  
Kartik Chandra Mondal ◽  
...  

2021 ◽  
Vol 4 (03) ◽  
pp. 50-71
Author(s):  
Leonardo Dos Santos ◽  
Bernardo L. Rodrigues ◽  
Camila B. Pinto

The ongoing increase in the number of experimental charge-density studies can be related to both the technological advancements and the wide applicability of the method. Regarding materials science, the understanding of bonding features and their relation to the physical properties of materials can not only provide means to optimize such properties, but also to predict and design new materials with the desired ones. In this tutorial, we describe the steps for a charge-density analysis, emphasizing the most relevant features and briefly discussing the applications of the method.


ChemPhysChem ◽  
2015 ◽  
Vol 16 (12) ◽  
pp. 2530-2533 ◽  
Author(s):  
Eduardo C. Escudero-Adán ◽  
Antonio Bauzá ◽  
Antonio Frontera ◽  
Pablo Ballester

2000 ◽  
Vol 521 (1-3) ◽  
pp. 97-106 ◽  
Author(s):  
R. Srinivasa Gopalan ◽  
P. Kumaradhas ◽  
G.U. Kulkarni ◽  
C.N.R. Rao

2007 ◽  
Vol 63 (a1) ◽  
pp. s28-s28
Author(s):  
El-E. Bendeif ◽  
C. Jelsch ◽  
B. Guillot ◽  
C. Lecomte ◽  
W. Morgenroth

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