The area coordination at the two Nb and O is sq. planar. A molecular instance, K4Al2Nb11O20F,122 exhibiting two Nb6O12 clusters condensed through one octahedral vertex is the initial chemical action towards the 3D composition of NbO. Electronic structure calculations corroborate the affect of Nb–Nb bonding, coupled with Nb–O interactions towards https://crithitceramics.com/durability-test-videos/