Home
Resources
Publications
Formation and Characterization of Zr 4+ Stabilized by Neutral Tridentate Ligands in the Gas Phase

Formation and Characterization of Zr 4+ Stabilized by Neutral Tridentate Ligands in the Gas Phase

Xiuting Chen, Qingnuan Li, Yu Gong

J Am Soc Mass Spectrom. 2018 Dec;29(12):2327-2332.

PMID: 30141129

Abstract:

Ligated tetrapositive metal ions are rare gas-phase species which tend to form complexes with lower charges due to the high 4th ionization energies of metals. We report the observation of tetrapositive Zr(TMPDA)34+ and Zr(TMOGA)34+ complexes in the gas phase by electrospray ionization of Zr(ClO4)4/TMPDA and Zr(ClO4)4/TMOGA mixtures. The Zr4+ center in both complexes is coordinated by nine atoms from three neutral diamide ligands forming nine-coordinate twisted tricapped trigonal prismatic geometry on the basis of DFT calculations. Collision-induced dissociation of both complexes resulted in the loss of protonated ligands to form tripositive Zr(TMPDA)(TMPDA-H)3+ and Zr(TMOGA)(TMOGA-H)3+ products which retain the IV oxidation state of zirconium at the cost of charge reduction from 4+ to 3+ of the whole complexes. The very high 4th ionization energy of zirconium (34.34 eV) makes tetrapositive zirconium complex the most challenging tetracation to be stabilized against charge reduction in the gas phase to date. Graphical abstract ᅟ.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP151575303	Zirconium(IV) oxide-scandia stabilized		151575-30-3	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: