A new supramolecular compound based on Keggin-type phosphomolybates with mixed-ligand and mixed-valence Cu(I/II): [Cu(I)(phen)2]2{[Cu(II)]2(phen)4PTA}[H3PMo8VIMo4VO40]

{BW12O40} Hybrids Modified by in Situ Synthesized Rigid Ligand with Supercapacitance and Photocatalytic Properties

“…The fit of the high-resolution Cu 2p curves in compound 2 is significantly different from that in compound 1 . In Figure S16f, we can see the position of two peaks for compound 2 at about 952.54 and 932.42 eV, which correspond to Cu I 2p 1/2 and Cu I 2p 3/2 , , respectively. The results prove that the valence states of Cu atoms in compounds 1 and 2 are distinct, which is consistent with the BVS calculations.…”

“…As shown in Figure S14, the XPS spectra confirm that compounds 1 and 2 contain B, W, C, N, O, and Cu. The high-resolution XPS spectrum of Cu 2p in compound 1 displays peaks at about 954.21 and 934.54 eV which are assigned to the Cu II 2p 1/2 and Cu II 2p 3/2 , respectively, as shown in Figure S15f. The fit of the high-resolution Cu 2p curves in compound 2 is significantly different from that in compound 1 .…”

Copper complex/polyoxometalate‐based tunable multi‐color film for energy storage

“…This means that all W elements are at the highest valence and can be reduced to W V , which is a key reaction for EC process of polyoxotungstate. The P 2p peak at 132.8 eV can be attributed to P 2 W 17 (Figure 2b), and the two peaks at 934.2 and 955.1 eV are attributed to Cu 2p3/2 and Cu 2p1/2, respectively 35 (Figure 2c). The high‐resolution peaks of Ti element can be divided into two peaks (Figure 2d), which appear at 458.2 and 464.5 eV.…”

A series of polyoxometalate compounds by tuning N sites and numbers of ligands: syntheses, characterization and electrochemical sensing, and photocatalytic and supercapacitor properties

“…For example, ligands containing only one coordination group were used earlier, such as imidazole, triazole and their derivatives. 11 Next, some ligands with two symmetrical coordination groups were introduced to the POM field, such as bis(pyridine), bis(triazole) and bis(imidazole) derivatives. 12 For example, Peng et al used two bis(triazole) derivatives 1,2-bis(1,2,4-triazol-1-yl)ethane (bte) and 1,4-bis(1,2,4-triazol-1-yl)butane (btb) to synthesize four inorganic–organic hybrid POM compounds.…”