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Vapochromism and Magnetochemical Switching of a Nickel(II) Paddlewheel Complex by Reversible NH~3~ Uptake and Release by Katharina M. Fürpaß; Lydia M. Peschel; Jörg A. Schachner; Sergey M. Borisov; Heinz Krenn; Ferdinand Belaj; Nadia C. Mösch‐Zanetti is a Chemistry article available to read on EtoBox.
What is Vapochromism and Magnetochemical Switching of a Nickel(II) Paddlewheel Complex by Reversible NH~3~ Uptake and Release about?
## Abstract Reaction of [NiCl~2~(PnH)~4~] (1) (PnH=6‐tert‐butyl‐pyridazine‐3‐thione) with NiCl~2~ affords the binuclear paddlewheel (PW) complex [Ni~2~(Pn)~4~] (2). Diamagnetic complex 2 is the first example of a PW complex capable of reversibly binding and releasing NH~3~. The NH~3~ ligand in [Ni~2~(Pn)~4~(NH~3~)] (2⋅NH~3~) enforces major spectroscopic and magnetic susceptibility changes, thus displaying vapochromic properties (λ~max~(2)=532 nm, λ~max~(2⋅NH~3~)=518 nm) and magnetochemical switching (2: S=0; 2⋅NH~3~: S=1). Upon repeated adsorption/desorption cycles of NH~3~ the PW core remains intact. Compound 2 can be embedded into thin polyurethane films (2^P^) under retention of its sensing abilities. Therefore, 2 qualifies as reversible optical probe for ammonia. The magnetochemical switching of 2 and 2⋅NH~3~ was studied in detail by SQUID measurements showing that in 2⋅NH~3~, solely the Ni atom coordinated the NH~3~ molecule is responsible for the paramagnetic behavior.
Who reads Vapochromism and Magnetochemical Switching of a Nickel(II) Paddlewheel Complex by Reversible NH~3~ Uptake and Release?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Katharina M. Fürpaß; Lydia M. Peschel; Jörg A. Schachner; Sergey M. Borisov; Heinz Krenn; Ferdinand Belaj; Nadia C. Mösch‐Zanetti
- Publisher
- Wiley
- Published
- 2021
- Language
- EN
- Field
- Chemistry (Physical Sciences)