scholarly journals Solid-State Nuclear Magnetic Resonance Studies Delineate the Role of the Protein in Activation of Both Aromatic Rings of Thiamin

2011 ◽  
Vol 134 (1) ◽  
pp. 665-672 ◽  
Author(s):  
Anand Balakrishnan ◽  
Sivakumar Paramasivam ◽  
Sumit Chakraborty ◽  
Tatyana Polenova ◽  
Frank Jordan
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Aromatic Rings ◽  
Magnetic Resonance Studies ◽  
Nuclear Magnetic

Multinuclear high-resolution solid-state nuclear magnetic resonance studies of amorphous silica-aluminas

1991 ◽  
Vol 77 (1) ◽  
pp. 149-161 ◽  
Author(s):  
Claudine Dorémieux-Morin ◽  
Claudine Martin ◽  
Jean-Marie Brégeault ◽  
Jacques Fraissard
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Amorphous Silica ◽  
Magnetic Resonance Studies ◽  
Nuclear Magnetic

Solid-state 207Pb nuclear magnetic resonance studies of adducts of 1,10-phenanthroline with lead(II) halides

2011 ◽  
Vol 89 (7) ◽  
pp. 863-869 ◽  
Author(s):  
Alicia Glatfelter ◽  
Shi Bai ◽  
Olga Dmitrenko ◽  
Dale L. Perry ◽  
Scott E. Van Bramer ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Electronic State ◽  
Coordination Complexes ◽  
Magnetic Resonance Studies ◽  
Nmr Parameters ◽  
State Coordination ◽  
Chemical Shieldings ◽  
Nuclear Magnetic

Experimental and predicted 207Pb nuclear magnetic resonance (NMR) parameters of solid-state coordination complexes of lead(II) bromide, lead(II) iodide, and lead(II) chloride with 1,10-phenanthroline are reported. Structural and electronic differences between the 1:1 and 1:2 adducts are reflected by the NMR parameters. The NMR chemical shieldings of the isostructural complexes indicate that the electronic state of the lead(II) center depends on the number of ligands and the halogen anion. The NMR results suggest that the 1:2 adduct may be more stereochemically active than the 1:1 adduct.

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