We have located links that may give you full text access.
Binding of Mono- and Dianions within Silver Thiazolylurea Tweezers and Capsules.
Inorganic Chemistry 2017 October 17
A silver thiazolylurea complex, [Ag(TUTh)2 ]+ , has been used as a host species for geometrically differently shaped mono- and dianions: trigonal planar (NO3 - ), tetrahedral (SO4 2- ), and octahedral (SiF6 2- ). In the presence of nitrate a 1:1 near-planar tweezer host-guest species is formed, with poor binding in solution despite excellent geometric complementarity being found between the host and the anion in the solid state. In the presence of either SO4 2- or SiF6 2- a 2:1 host-guest species is formed, whereby the guest is held in a capsulelike arrangement stabilized by an array of eight NH hydrogen-bond donors, as confirmed by X-ray crystallographic studies. Solution studies in DMSO-d6 support the host-guest stoichiometry seen in the solid state. The binding constant between SO4 2- and [Ag(TUTh)2 ]+ was calculated to be K21 = 2511 M-2 and was shown to be the dominant species in solution, in excellent agreement with the solid-state studies. However, upon the addition of SiF6 2- ions different speciation is observed: H2 ·G (capsule), H·G (tweezer), and H·G2 during the course of the study.
Full text links
Trending Papers
A Personalized Approach to the Management of Congestion in Acute Heart Failure.Heart International 2023
Potential Mechanisms of the Protective Effects of the Cardiometabolic Drugs Type-2 Sodium-Glucose Transporter Inhibitors and Glucagon-like Peptide-1 Receptor Agonists in Heart Failure.International Journal of Molecular Sciences 2024 Februrary 21
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app