transition metal compounds
21transition element — noun or transition metal : any of the series of metals (as scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel) that fall in the center of the long form of the periodic table, that include as inner series the lanthanide series …
22transition element — noun any of the group or metallic elements that have an incomplete inner (d) electron shell; they have multiple valencies and form coloured compounds and stable complex ions; the elements …
23Metal acetylacetonates — are coordination complexes derived from the acetylacetonate anion and metal ions, usually transition metals. The ligand acetylacetonate is often abbreviated acac. Typically both oxygen atoms bind to the metal to form a six membered chelate ring.… …
24Metal-organic framework — Metal Organic Frameworks are crystalline compounds consisting of metal ions or clusters coordinated to often rigid organic molecules to form one , two , or three dimensional structures that can be porous. In some cases, the pores are stable to… …
25Sublimation (phase transition) — Dark green crystals of nickelocene, freshly sublimed on a cold finger …
26Metal halide complex — Metal halide complexes are coordination compounds containing metal ions with only halides as a ligands. These complexes are common for many metals and some are important technologically. They have the general stoichiometry [MXn]z [1] Contents 1… …
27metal — metallike, adj. /met l/, n., v., metaled, metaling or (esp. Brit.) metalled, metalling. n. 1. any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by… …
28Compounds of oxygen — Water (H2O) is the most familiar oxygen compound The oxidation state f oxygen is −2 in almost all known compounds of oxygen. The oxidation state −1 is found in a few compounds such as peroxides. Compounds containing oxygen in other oxidation… …
29Metal salen complexes — Salens are a class of organic compounds used as ligands in coordination chemistry. This class of compounds are named after the simplest example, N,N bis(salicylidene)ethylenediamine, more commonly referred to as salen. Contents 1 Preparation 2… …
30Compounds of carbon — Scientists once thought that organic compounds are or could only be created by living organisms. Over time, human have learned how to synthesize organic compounds. There is an immense number of distinct compounds that contain carbon atoms. Some… …
