Synthesis, crystal structures, and surface photovoltage properties of four new metal diphosphonates based on the mixed ligands

Structural, spectral and magnetic studies of two Co(II)-N-heterocyclic diphosphonates based on multinuclear units

“…The Co(II)-Cl distances are in the range of 2.303(2)-2.306(2) Å. The Co(II)-O/N distances in 1 are fall within the range of 1.980(4)-2.240(4) Å/2.082(6)-2.091(6) Å which are similar to those of reported 2,2′-bipy-containing Co(II) phosphonate complexes [12].…”

“…The last two patterns of -PO 3 group are usually found in the same kinds of phosphonate compounds [9][10][11][12]. However, little research on these three patterns in the same structure was reported.…”

“…Finally, Co(II) ion is focused because of its unique high-spin d 7 electron configuration and larger spin-orbital coupling effect for an octahedral Co(II) complex. Many great compounds of Co(II)-H 5 L have been resolved, but a few Co(II)-diphosphonate compounds with 2,2′-bipy/phen have been structurally determined [12]. By introducing the auxiliary ligands 2,2′-bipy/ phen, we have succeeded in winning two new diphosphonate CPs, 0.5(H 3 NCH 2 CH 2 NH 3 )·[Co 6 (Cl 2 )(H 3 L) 2 (H 2 L)(HL)(2,2′-bipy) 6 ] 1 and 2(NH 4 )·[Co 3 (HL) 2 (H 2 O) 2 (phen) 2 ]·2(H 2 O) 2.…”

Molecular Metal Phosphonates

“…However, a phosphinate complex, (μ-H) 2 Os 3 -(CO) 10 (μ,η 2 -O 2 PPh 2 ), is known ( Figure 104). 236 243 This compound was prepared in the The terminal pyrazole and chloride ligands help in fulfilling the coordination requirement of the Co II ions. Other dinuclear and heterometallic Co 2 Sb 2 ensembles are summarized in Table 17.…”

Preparation, characterization, crystal structures and catalytic oxidation activities of two transition metal complexes of an N-heterocyclic pincer ligand

“…For complex 2, peaks at 369, 569 and 960 nm are assigned to the d-d* transitions of the Ni 2? center [26].…”