Inorg Chem March 2001 PMID 11261958

A synthetic, structural, magnetic, and spectral study of several [Fe[tris(pyrazolyl)methane]2](BF4)2 complexes: observation of an unusual spin-state crossover.

D L Reger, C A Little, A L Rheingold, M Lam, L M Liable-Sands, B Rhagitan, T Concolino, A Mohan, G J Long, V Briois, F Grandjean

Full text PDF Download social card

Mentions

Peak: 3 in May 2025

across 2 sources since Nov 2016

Extended reach

125,453

potential audience

Total likes

4,103

Video views

125,261

Mentions per month

Nov 2016 – Dec 2025

Where it's discussed

YouTube15 videos
X / Twitter1 posts

AI synopsis

What people are saying

The comments mainly reference manipulation and critical perspectives, with phrases like 'Manipulationen nicht auf den Leim gehen,' which suggest skepticism or caution, but without elaboration. The tone is somewhat dismissive or questioning, indicating a neutral or modest level of interest and impact overall.

AgreementNeither agree nor disagree

The discussion does not clearly show strong agreement or disagreement; it remains neutral or ambiguous.

InterestModerate interest

Participants show mild interest, possibly questioning some aspects or expressing cautious curiosity.

EngagementNeutral engagement

The engagement level appears low, with no detailed analysis or deep discussion evident.

ImpactNeutral impact

The discussions do not indicate the post has a significant influence on understanding or opinion about the research.

Abstract in brief

This study investigates the magnetic and spectral properties of three FeBF4 complexes with Fetrispyrazolylmethane derivatives, focusing on their unusual spin state behaviors; notably, complex 1 transitions from highspin to a mixture of highspin and lowspin states upon cooling, while complexes 2 and 3 show different spin state changes depending on temperature and phase, with complex 2 becoming highspin upon heating and complex 3 remaining lowspin.
The research employs various techniques such as magnetic measurements, Mössbauer spectroscopy, crystallography, and X-ray absorption spectroscopy to analyze the spin states and structural details, revealing how the complexes’ electronic configurations vary with temperature and phase.
Findings highlight that the complexes exhibit complex spin crossover phenomena, with complex 1 showing a temperature-induced shift in spin state, complex 2 transitioning from lowspin to highspin at higher temperatures, and complex 3 remaining lowspin, emphasizing the influence of ligand structure and temperature on their magnetic behavior.]

Read the full abstract