Dinuclear palladium complexes with two ligand-centered radicals and a single bridging ligand: subtle tuning of magnetic properties

Chemistry : a European Journal
Daniël L J BroereJarl Ivar van der Vlugt

Abstract

The facile and tunable preparation of unique dinuclear [(L(⋅))Pd-X-Pd(L(⋅))] complexes (X = Cl or N3), bearing a ligand radical on each Pd, is disclosed, as well as their magnetochemistry in solution and solid state is reported. Chloride abstraction from [PdCl(NNO(ISQ))] (NNO(ISQ) = iminosemiquinonato) with TlPF6 results in an unusual monochlorido-bridged dinuclear open-shell diradical species, [{Pd(NNO(ISQ))}2(μ-Cl)](+), with an unusually small Pd-Cl-Pd angle (ca. 93°, determined by X-ray). This suggests an intramolecular d(8)-d(8) interaction, which is supported by DFT calculations. SQUID measurements indicate moderate antiferromagnetic spin exchange between the two ligand radicals and an overall singlet ground state in the solid state. VT EPR spectroscopy shows a transient signal corresponding to a triplet state between 20 and 60 K. Complex 2 reacts with PPh3 to generate [Pd(NNO(ISQ))(PPh3)](+) and one equivalent of [PdCl(NNO(ISQ))]. Reacting an 1:1 mixture of [PdCl(NNO(ISQ))] and [Pd(N3)(NNO(ISQ))] furnishes the 1,1-azido-bridged dinuclear diradical [{Pd(NNO(ISQ))}2(κ(1)-N;μ-N3](+), with a Pd-N-Pd angle close to 127° (X-ray). Magnetic and EPR measurements indicate two independent S = 1/2 spin carriers and no magnetic intera...Continue Reading

References

Sep 18, 2001·Inorganic Chemistry·J C PetersM W Day
May 8, 1997·Chemical Reviews·Pekka Pyykkö
Oct 8, 2005·Angewandte Chemie·Guido LeibelingFranc Meyer
Jul 13, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Serhiy DemeshkoFranc Meyer
Sep 7, 2006·Journal of Computational Chemistry·Stefan Grimme
Oct 13, 2006·Proceedings of the National Academy of Sciences of the United States of America·Hongbo Li, Tobin J Marks
Sep 14, 2007·Chemical Reviews·Juan C Fontecilla-CampsYvain Nicolet
Jan 1, 2008·Journal of the American Chemical Society·Mark R RingenbergThomas B Rauchfuss
Mar 8, 2008·Accounts of Chemical Research·Tobias Schwabe, Stefan Grimme
Aug 9, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Yulie KlermanDavid Milstein
Jan 23, 2010·Inorganic Chemistry·John E BercawJay R Winkler
Jul 1, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Irene AraHelvia Miedes
Sep 4, 2010·Angewandte Chemie·Julia RinckAnnie K Powell
Mar 4, 2011·Chemistry : a European Journal·Jarl Ivar van der VlugtMartin Lutz
Jul 1, 2009·Nature Chemistry·David C Powers, Tobias Ritter
Jul 13, 2011·Inorganic Chemistry·Wolfgang Kaim
Oct 28, 2011·Accounts of Chemical Research·David C Powers, Tobias Ritter
Dec 15, 2011·Chemical Communications : Chem Comm·Naina DeibelBiprajit Sarkar
May 29, 2012·Chemistry : a European Journal·Noel NebraDidier Bourissou
Jun 29, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Sandra Y de BoerJarl Ivar van der Vlugt
Jul 31, 2012·Chemical Society Reviews·Jongwoo Park, Sukwon Hong
Oct 25, 2012·Inorganic Chemistry·Chelsea D CatesLouise A Berben
Nov 24, 2012·Chemical Communications : Chem Comm·Thomas W Myers, Louise A Berben
Jul 26, 2013·Chemical Reviews·Manabu Abe
Nov 20, 2013·Accounts of Chemical Research·Sandip Mukherjee, Partha Sarathi Mukherjee
Nov 28, 2013·Chemical Communications : Chem Comm·Shigeki Matsunaga, Masakatsu Shibasaki
Dec 7, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Yanyan MulyanaColette Boskovic
Jun 6, 2014·Chemical Communications : Chem Comm·Margarethe van der MeerBiprajit Sarkar

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Citations

Feb 4, 2016·Inorganic Chemistry·Hiromasa TanahashiKazushi Mashima
Mar 17, 2017·Journal of the American Chemical Society·Bidraha BaghJarl Ivar van der Vlugt
Jan 15, 2016·Angewandte Chemie·Daniël L J BroereJarl Ivar van der Vlugt
Aug 18, 2016·Chemistry : a European Journal·Daniël L J BroereJarl Ivar van der Vlugt
Apr 23, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Sachinath BeraPrasanta Ghosh
Aug 8, 2018·Chemistry : a European Journal·Jarl Ivar van der Vlugt
Jul 18, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Sebastian SobottkaBiprajit Sarkar
Nov 20, 2019·Chemistry : a European Journal·Raquel J RamaM Carmen Nicasio
Jul 22, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Zarina M BikbaevaVadim Yu Kukushkin
Oct 12, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexandr V PiskunovGeorgy K Fukin
Jun 26, 2018·European Journal of Inorganic Chemistry·Linda S JongbloedJarl Ivar van der Vlugt
Aug 5, 2021·Inorganic Chemistry·Clayton J CurtisElisa Tomat

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