Influence of ligand field stabilization energy on the elastic properties of multiferroic MOFs with the perovskite architecture

2012 ◽  
Vol 41 (14) ◽  
pp. 3949 ◽  
Author(s):  
Jin-Chong Tan ◽  
Prashant Jain ◽  
Anthony K. Cheetham
1995 ◽  
Vol 34 (12) ◽  
pp. 3253-3259 ◽  
Author(s):  
David A. Johnson ◽  
Peter G. Nelson

1976 ◽  
Vol 54 (6) ◽  
pp. 878-882
Author(s):  
Ouassini Benali-Baitich ◽  
Edgar Wendling

The behaviour of manganese(II) perchlorate in aqueous perchloric acid solution [Formula: see text] was studied by epr at 25 and 55 °C. The broadening of the band following addition of HClO4 considerably exceeds that normally caused by the increase in the viscosity. This result is interpreted in terms of the formation of an internal monoperchlorato complex in equilibrium with the external complex. The decrease in the relative intensity of the signal following addition of HClO4 confirms the presence of an internal monoperchlorato complex and permits the evaluation of its stability constant, (8.0 ± 1.5) × 10−2. The relative stability of the Mn(II) monoperchlorato complex compared to those of Co(II) and Ni(II) is explained by a consideration of the ligand field stabilization energy. [Journal translation]


Author(s):  
Amy M. McGough ◽  
Robert Josephs

The remarkable deformability of the erythrocyte derives in large part from the elastic properties of spectrin, the major component of the membrane skeleton. It is generally accepted that spectrin's elasticity arises from marked conformational changes which include variations in its overall length (1). In this work the structure of spectrin in partially expanded membrane skeletons was studied by electron microscopy to determine the molecular basis for spectrin's elastic properties. Spectrin molecules were analysed with respect to three features: length, conformation, and quaternary structure. The results of these studies lead to a model of how spectrin mediates the elastic deformation of the erythrocyte.Membrane skeletons were isolated from erythrocyte membrane ghosts, negatively stained, and examined by transmission electron microscopy (2). Particle lengths and end-to-end distances were measured from enlarged prints using the computer program MACMEASURE. Spectrin conformation (straightness) was assessed by calculating the particles’ correlation length by iterative approximation (3). Digitised spectrin images were correlation averaged or Fourier filtered to improve their signal-to-noise ratios. Three-dimensional reconstructions were performed using a suite of programs which were based on the filtered back-projection algorithm and executed on a cluster of Microvax 3200 workstations (4).


Author(s):  
A.R. Thölén

Thin electron microscope specimens often contain irregular bend contours (Figs. 1-3). Very regular bend patterns have, however, been observed around holes in some ion-milled specimens. The purpose of this investigation is twofold. Firstly, to find the geometry of bent specimens and the elastic properties of extremely thin foils and secondly, to obtain more information about the background to the observed regular patterns.The specimen surface is described by z = f(x,y,p), where p is a parameter, eg. the radius of curvature of a sphere. The beam is entering along the z—direction, which coincides with the foil normal, FN, of the undisturbed crystal surface (z = 0). We have here used FN = [001]. Furthermore some low indexed reflections are chosen around the pole FN and in our fcc crystal the following g-vectors are selected:


1995 ◽  
Vol 05 (C8) ◽  
pp. C8-729-C8-734
Author(s):  
A.I. Lotkov ◽  
V.P. Lapshin ◽  
V.A. Goncharova ◽  
H.V Chernysheva ◽  
V.N. Grishkov ◽  
...  

2015 ◽  
Vol 185 (11) ◽  
pp. 1215-1224 ◽  
Author(s):  
Yurii Kh. Vekilov ◽  
Oleg M. Krasil'nikov ◽  
Andrei V. Lugovskoy

1971 ◽  
Vol 74 (1_2) ◽  
pp. 11-16 ◽  
Author(s):  
I. Gănescu ◽  
Margareta Teodorescu ◽  
C. I. Lepădatu
Keyword(s):  

2012 ◽  
Vol 2 (5) ◽  
pp. 546-548
Author(s):  
P. Vasantharani P. Vasantharani ◽  
◽  
I.Sankeeda I.Sankeeda

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