Nuclear magnetic resonance and electron spin resonance studies of organic selenium and tellurium compounds

Synthesis of an acyclic diselenodithioether ligand tethered with bulky substituents and its application to the synthesis of a distorted octahedral palladium(II) complex

“…The 77 Se NMR spectrum of 3 showed a signal at 282 ppm, which is within a range of those reported for diaryl selenides [15].…”

Pentamethylcyclopentadienylselenium derivatives VI: Synthesis and characterisation of ferrocenyl(pentamethylcyclopentadienyl)selenium

“…The 77 Se NMR chemical shifts of unsymmetrical dialkyl selenides may generally be predicted by halving the sum of the chemical shifts of the symmetrical derivatives [9]. In the case of 3 this procedure gives good agreement with the experimental value (Se (C 5 Me 4 H) 2 : d = 292 [10]; SeFc 2 : d = 275 [11]; 3: d = 280).…”

“…1.868(10) Se-C(11) 2.017 (8) Fe-C(10) 2.028(8) Fe-C(5) 2.055(9) Fe-C (9) 2.020 (7) Fe-C(4) 2.032(9) Fe-C (8) 2.042(9) Fe-C(3) 2.039(9) Fe-C (7) 2.058(9) Fe-C(2) 2.037(9) Fe-C (6) 2.032 ( …”

A novel macrocyclic diselenoether containing naphathalene ring and its Mo(0) tetracarbonyl complex: Synthesis, crystal structures and fluorescence study

“…In the 13 C NMR spectrum, the 1 J Se-C value for the α-carbon is 67 Hz, similar to those in RSe(CH 2 ) n SeR (n N 1) which have been observed to be almost constant at ca. 60 Hz [15].Single crystals of L suitable for study by X-ray diffraction were obtained as white plates from CH 2 Cl 2 /hexanes [16]. The compound crystallizes in the space group P2 1 /c of the monoclinic system with eight molecules in the unit cell and two molecules forming the asymmetric unit.…”

“…In the 13 C NMR spectrum, the 1 J Se-C value for the α-carbon is 67 Hz, similar to those in RSe(CH 2 ) n SeR (n N 1) which have been observed to be almost constant at ca. 60 Hz [15].…”