Relativistic heavy atom effect on the 31 P NMR parameters of phosphine chalcogenides. Part 1. Chemical shifts

2018 ◽  
Vol 56 (11) ◽  
pp. 1061-1073 ◽  
Author(s):  
Yury Yu Rusakov ◽  
Irina L. Rusakova ◽  
Leonid B. Krivdin
Keyword(s):  
Chemical Shifts ◽  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Nmr Parameters ◽  
Atom Effect ◽  
Phosphine Chalcogenides

On the significant relativistic heavy atom effect on 13C NMR chemical shifts of β- and γ-carbons in seleno- and telluroketones

2017 ◽  
Vol 115 (24) ◽  
pp. 3117-3127 ◽  
Author(s):  
Yuriy Yu. Rusakov ◽  
Irina L. Rusakova ◽  
Leonid B. Krivdin
Keyword(s):  
13C Nmr ◽  
Chemical Shifts ◽  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Nmr Chemical Shifts ◽  
13C Nmr Chemical Shifts ◽  
Atom Effect

Relativistic heavy atom effect on 13 C NMR chemical shifts initiated by adjacent multiple chalcogens

2018 ◽  
Vol 56 (8) ◽  
pp. 716-726 ◽  
Author(s):  
Yu.Yu. Rusakov ◽  
I.L. Rusakova
Keyword(s):  
Chemical Shifts ◽  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Nmr Chemical Shifts ◽  
Atom Effect ◽  
C Nmr

Long-range relativistic heavy atom effect on 1 H NMR chemical shifts of selenium- and tellurium-containing compounds

2018 ◽  
Vol 119 (3) ◽  
pp. e25809 ◽  
Author(s):  
Yuriy Yu. Rusakov ◽  
Irina L. Rusakova
Keyword(s):  
Long Range ◽  
Chemical Shifts ◽  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Nmr Chemical Shifts ◽  
H Nmr ◽  
Atom Effect

closo-Halogenohydrohexaborate, II 11B-NMR-Spektren der closo-Halogenohydrohexaborate XnB6H6-n2-, n = 0-6; X = Cl, Br, I / closo-Halogenohydrohexaborate, II 11B NMR Spectra of the closo-Halogenohydrohexaborates XnB6H6-n2-, n = 0-6; X = Cl, Br, I

1987 ◽  
Vol 42 (3) ◽  
pp. 287-292 ◽  
Author(s):  
J. Fritze ◽  
W. Preetz ◽  
H. C. Marsmann
Keyword(s):  
Nmr Spectra ◽  
Chemical Shifts ◽  
Heavy Atom ◽  
Heavy Atom Effect ◽  
H Nmr ◽  
Complete Series ◽  
11B Nmr ◽  
Characteristic Features ◽  
Atom Effect

The point symmetries of the halogenohydrohexaborates within the nearly complete series XnB6H6-n2-, X = Cl, Br, I; n = 1-5, are determined from the 11B and 11B{1H} NMR spectra, which show characteristic features for homologous isostructural compounds related to the electronegativity of the substituents. The chemical shifts are mainly influenced by -I, +M, and in the case of X = I by the heavy atom effect. Along with a strong antipodal effect a slight vicinal influence between neighbours in the B6 cage is observed, increasing with the number of substituted atoms

Achieving high singlet-oxygen generation by applying the heavy-atom effect to thermally activated delayed fluorescent materials

2021 ◽  
Author(s):  
Ya-Fang Xiao ◽  
Jia-Xiong Chen ◽  
Wen-Cheng Chen ◽  
Xiuli Zheng ◽  
Chen Cao ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Heavy Atom ◽  
Synergetic Effect ◽  
Heavy Atom Effect ◽  
Oxygen Generation ◽  
Thermally Activated ◽  
Singlet Oxygen Generation ◽  
Fluorescent Materials ◽  
Atom Effect

Applying the heavy-atom effect to TADF photosensitizers achieves ultra-high 1O2 generation (ФΔ = 0.91) by the synergetic effect of small ΔEST and considerable SOC.

Enhancement of Reverse Intersystem Crossing in Charge‐Transfer Molecule through Internal Heavy Atom Effect

2021 ◽  
pp. 2104646
Author(s):  
Hyung Suk Kim ◽  
Ja Yeon Lee ◽  
Seongjun Shin ◽  
Wonkyo Jeong ◽  
Sang Hoon Lee ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Heavy Atom ◽  
Intersystem Crossing ◽  
Heavy Atom Effect ◽  
Atom Effect

ChemInform Abstract: HEAVY-ATOM EFFECT IN PHOTOISOMERIZATION OF 4-PYRONES AND 4-PYRIDONES

1978 ◽  
Vol 9 (42) ◽  
Author(s):  
N. ISHIBE ◽  
S. YUTAKA
Keyword(s):  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Atom Effect

1,2,5-Chalcogenadiazole-Annulated Tripyrazinoporphyrazines: Synthesis, Spectral Characteristics, and Influence of the Heavy Atom Effect on Their Photophysical Properties

2014 ◽  
Vol 2015 (3) ◽  
pp. 596-604 ◽  
Author(s):  
Jan Svec ◽  
Petr Zimcik ◽  
Lucie Novakova ◽  
Oleg A. Rakitin ◽  
Stanislav A. Amelichev ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Heavy Atom ◽  
Spectral Characteristics ◽  
Heavy Atom Effect ◽  
Atom Effect

scholarly journals Etude par résonance magnétique nucléaire de composés organiques contenant des chalcogènes. II. L'éther de diphényle et ses analogues soufré, sélénié et telluré

1979 ◽  
Vol 57 (22) ◽  
pp. 2967-2970 ◽  
Author(s):  
Gabriel Llabrès ◽  
Marcel Baiwir ◽  
Léon Christiaens ◽  
Jean-Louis Piette
Keyword(s):  
Crystal Structure ◽  
Theoretical Calculations ◽  
Heavy Atom ◽  
Mesomeric Effect ◽  
Heavy Atom Effect ◽  
Inductive Effects ◽  
Structure Determinations ◽  
Résonance Magnétique ◽  
Atom Effect ◽  
Good Agreement

The 1Hmr study of the title compounds has revealed a screw conformation, with defined interconversion processes, in good agreement with crystal structure determinations and theoretical calculations. The mesomeric effect of the heteroatom is smaller than in the anisole series, due to steric inhibitions.The 13Cmr enhances, to some extent, these conclusions. In the case of Te compounds, a heavy atom effect adds to the classical mesomeric and inductive effects to account for the experimental observations.

Breaking Classic Heavy‐Atom Effect to Achieve Heavy‐Atom‐Induced Dramatic Emission Enhancement of Silole‐Based AIEgens with Through‐Bond and Through‐Space Conjugation

2021 ◽  
pp. 2101228
Author(s):  
Zuping Xiong ◽  
Zhenni Wang ◽  
Longxiang Liu ◽  
Mengyi Jiang ◽  
Xiaoxiao Zhang ◽  
...  
Keyword(s):  
Heavy Atom ◽  
Heavy Atom Effect ◽  
Emission Enhancement ◽  
Atom Effect
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