Kida, Motoki published the artcileSpherand complexes with Li+ and Na+ ions in the gas phase: encapsulation structure and characteristic unimolecular dissociation, Quality Control of 127972-00-3, the main research area is lithium sodium Spherand complex formation DFT calculation.
The authors investigated the complexes of Cram’s hexa(p-anisole) spherands (SPR, 1) with Li+ and Na+ ions (1·Li+ and 1·Na+) isolated in the gas phase. Despite the small conformational difference between 1·Li+ and 1·Na+ owing to the rigid framework of 1, UV photodissociation (UVPD) spectroscopy under cryogenic (~10 K) conditions yielded clearly distinguishable absorption edges: ~34,000 and ~34,500 cm-1 for 1·Li+ and 1·Na+, resp. The spectral assignment and the preorganization characteristics of the host mol. were compared with those of dibenzo-18-crown-6-ether (DB18C6) complexes, which have more flexible frameworks. Also, the authors revealed the characteristic unimol. dissociation of the 1·Li+ complex using UVPD and collision-induced dissociation (CID); the formation of fragment ions with dibenzofuran moieties was detected. This dissociation pattern was ascribed to the efficient release of di-Me ether mol.(s) from the 1·Li+ complex, which is characteristic of the cyclic skeleton formed with six methoxy groups in the SPR.
Physical Chemistry Chemical Physics published new progress about Conformers. 127972-00-3 belongs to class ethers-buliding-blocks, name is 2-Methoxy-5-methylphenylboronic acid, and the molecular formula is C8H11BO3, Quality Control of 127972-00-3.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem