Optimum spin-state selection for all multiplicities in the acquisition dimension of the HSQC experiment

2006 ◽  
Vol 180 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Pau Nolis ◽  
Juan Félix Espinosa ◽  
Teodor Parella
Keyword(s):  
Spin State ◽  
Selection For ◽  
State Selection

Spin-state selection for increased confidence in cross-correlation rates measurements

2005 ◽  
Vol 31 (2) ◽  
pp. 149-154 ◽  
Author(s):  
Paul R. Vasos ◽  
Jennifer B. Hall ◽  
David Fushman
Keyword(s):  
Spin State ◽  
Cross Correlation ◽  
Selection For ◽  
State Selection

scholarly journals Trajectory optimization and state selection for urban automated driving

2018 ◽  
Vol 23 (4) ◽  
pp. 474-480 ◽  
Author(s):  
Keisuke Yoneda ◽  
Toshiki Iida ◽  
TaeHyon Kim ◽  
Ryo Yanase ◽  
Mohammad Aldibaja ◽  
...  
Keyword(s):  
Trajectory Optimization ◽  
Automated Driving ◽  
Selection For ◽  
State Selection

scholarly journals Structural Evidence of Spin State Selection and Spin Crossover Behavior of Tripodal Schiff Base Complexes of tris(2-aminoethyl)amine and Related Tripodal Amines

2020 ◽  
Vol 6 (2) ◽  
pp. 28
Author(s):  
Greg Brewer
Keyword(s):  
Schiff Base ◽  
Spin State ◽  
Density Functional ◽  
Spin Crossover ◽  
Bimodal Distribution ◽  
Structural Features ◽  
Schiff Base Complexes ◽  
Mononuclear Iron ◽  
Experimental Values ◽  
State Selection

A review of the tripodal Schiff base (SB) complexes of tris(2-aminoethyl)amine, Nap(CH2CH 2NH2)3 (tren), and a few closely related tripodal amines with Cr(II), Mn(III) (d4), Mn(II), Fe(III) (d5), Fe(II) (d6), and Co(II) (d7) is provided. Attention is focused on examination of key structural features, the M-Nimine, M-Namine, or M-O and M-Nap bond distances and Nimine-M-N(O) bite and C-Nap-C angles and how these values correlate with spin state selection and spin crossover (SCO) behavior. A comparison of these experimental values with density functional theory calculated values is also given. The greatest number, 132, of complexes is observed with cationic mononuclear iron(II) in a N6 donor set, Fe(II)N6. The dominance of two spin states, high spin (HS) and low spin (LS), in these systems is indicated by the bimodal distribution of histogram plots of Fe(II)-Nimine and Fe(II)-Nazole/pyridine bond distances and of Nimine–Fe(II)-Nazole/pyridine and C-Nap-C bond angles. The values of the two maxima, corresponding to LS and HS states, in each of these histograms agree closely with the theoretical values. The iron(II)-Nimine and iron(II)-Nazole/pyridine bond distances correlate well for these complexes. Examples of SCO complexes of this type are tabulated and a few of the 20 examples are discussed that exhibit interesting features. There are only a few mononuclear iron(III) cationic complexes and one is SCO. In addition, a significant number of supramolecular complexes of these ligands that exhibit SCO, intervalence, and chiral recognition are discussed. A summary is made regarding the current state of this area of research and possible new avenues to explore based on analysis of the present data.

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