Ion Mobility Mass Spectrometry Uncovers Guest-Induced Distortions in a Supramolecular Organometallic Metallosquare.

ABSTRACT: The encapsulation of the tetracationic palladium metallosquare with four pyrene-bis-imidazolylidene ligands [1]⁴⁺ with a series of organic molecules was studied by Electrospray ionization Travelling Wave Ion-Mobility Mass Spectrometry (ESI TWIM-MS). The method allowed to determine the Collision Cross Sections (CCSs), which were used to assess the size changes experienced by the host upon encapsulation of the guest molecules. When fullerenes were used as guests, the host is expanded ΔCCS 13 Ų and 23 Ų , for C₆₀ or C₇₀ , respectively. The metallorectangle [1]⁴⁺ was also used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs) and naphthalenetetracarboxylic diimide (NTCDI), to form complexes of formul

SUBMITTER: Vicent C 

PROVIDER: S-EPMC8361979 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature