Zhang, Jing published the artcileIron(II) complexes based on electron-rich, bulky PNN- and PNP-type ligands, Recommanded Product: 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, the publication is Inorganica Chimica Acta (2006), 359(6), 1955-1960, database is CAplus.
Reaction of the PNN ligand ((2-(di-tert-butylphosphinomethyl)-6-diethylaminomethyl)pyridine) with 1 equiv of anhydrous FeCl2 in THF gave (PNN)FeCl2 (1). The cationic complex [(PNN)Fe(THF)Cl](PF6) (2) was obtained by chloride abstraction from 1 with 1 equiv of TlPF6. Similarly, the PNP-type complexes, (t-Bu-PNP)FeCl2 (3) and (i-Pr-PNP)FeCl2 (4) were obtained from FeCl2 with 1 equiv of t-Bu-PNP (2,6-bis(di-tert-butylphosphinomethyl)pyridine) and i-Pr-PNP (2,6-bis(di-iso-propylphosphinomethyl)pyridine), resp. Complexes 1 and 3 were characterized by x-ray diffraction and elemental analyses. In both structures the Fe(II) centers exhibit a distorted square pyramidal geometry comprising two chloride ligands and one tridentate PNN or PNP ligand. The magnetic properties of the paramagnetic complexes 1–4 are discussed.
Inorganica Chimica Acta published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C14H10N2O, Recommanded Product: 2,6-Bis((di-tert-butylphosphino)methyl)pyridine.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem