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  2. Tantalum - Wikipedia

    en.wikipedia.org/wiki/Tantalum

    Tantalum is a chemical element; ... and carbon. Tantalum exists in two crystalline phases, alpha and beta. ... Tantalum halides span the oxidation states of +5, +4 ...

  3. Organotantalum chemistry - Wikipedia

    en.wikipedia.org/wiki/Organotantalum_chemistry

    Tantalum-Carbon Bond. Organotantalum chemistry is the chemistry of chemical compounds containing a carbon-to-tantalum chemical bond. A wide variety of compound have been reported, initially with cyclopentadienyl and CO ligands. Oxidation states vary from Ta(V) to Ta(-I).

  4. Group 5 element - Wikipedia

    en.wikipedia.org/wiki/Group_5_element

    Niobium forms oxides in the oxidation states +5 (Nb 2 O 5), [30] +4 (NbO 2), and the rarer oxidation state, +2 . [31] Most common is the pentoxide, also being precursor to almost all niobium compounds and alloys. [26] [32] Tantalum pentoxide (Ta 2 O 5) is the most important compound from the perspective of applications.

  5. Oxidation state - Wikipedia

    en.wikipedia.org/wiki/Oxidation_state

    8, has been described as having a carbon oxidation state of − ⁠ 8 / 3 ⁠. [19] Again, this is an average value since the structure of the molecule is H 3 C−CH 2 −CH 3, with the first and third carbon atoms each having an oxidation state of −3 and the central one −2.

  6. Tantalum carbide - Wikipedia

    en.wikipedia.org/wiki/Tantalum_carbide

    Tantalum carbides (TaC) form a family of binary chemical compounds of tantalum and carbon with the empirical formula TaC x, where x usually varies between 0.4 and 1. They are extremely hard , brittle, refractory ceramic materials with metallic electrical conductivity .

  7. Template : List of oxidation states of the elements/sandbox

    en.wikipedia.org/wiki/Template:List_of_oxidation...

    The oxidation states are also maintained in articles of the elements (of course), and systematically in the table {{Infobox element/symbol-to-oxidation-state}} See also [ edit ]

  8. Tris(silox)tantalum - Wikipedia

    en.wikipedia.org/wiki/Tris(silox)tantalum

    Tris(silox)tantalum, Ta(SiO t Bu 3) 3, is an organotantalum complex bound with three siloxide (this siloxide has three tert-butyl groups attached to silicon, attached via oxygen (t Bu 3 SiO-)) ligands. The tantalum center has a d-electron count of 2 and an oxidation state of III. The complex is trigonal planar whose point group is assigned as D 3h.

  9. Transition metal carbyne complex - Wikipedia

    en.wikipedia.org/wiki/Transition_metal_carbyne...

    Schrock carbynes on the other hand typically have higher oxidation state metals and electron-donating/anionic ligands. In a Fischer carbyne the C-carbyne exhibits electrophilic behavior while Schrock carbynes display nucleophilic reactivity on the carbyne carbon [ 9 ] Carbyne complexes have also been characterized by many methods including ...