Abstract
A new one-dimensional molecular solid, [I-BzPy-d5][Pt(mnt)2] (mnt2−=maleonitriledithiolate, I-BzPy-d5+=1-N-(4-iodobenzyl)pyridinium-d5) was synthesized. [I-BzPy-d5][Pt(mnt)2] and its analog [I-BzPy][Pt(mnt)2] are isostructural, crystallized in space group P−1 at ambient temperature. A hysteretic magnetic transition occurs at ca. 80K with 5.6K thermal hysteresis upon cooling. [I-BzPy-d5][Pt(mnt)2] features an alternating S=1/2 Heisenberg antiferromagnetic linear chain magnetic behavior with spin gap of 131K in high-temperature phase, while 306K in low-temperature phase. There is no significant isotope effect of both magnetism and phase transition by comparison of [I-BzPy-d5][Pt(mnt)2] and [I-BzPy][Pt(mnt)2]. The variable-temperature IR spectra in 10–293K revealed the existence of pre-transition phenomenon up until 100K and five intramolecular vibrational modes cooperating with the magnetic phase transition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
