Tantalum(v) 1,3-propanediolate β-diketonate solution as a precursor to sol–gel derived, metal oxide thin films

Abstract

Synthesis of tantalum(v) 1,3-propanediolate β-diketonate solution and use in photochemical solution deposition to form tantalum oxide films.

Synthesis and structures of tantalum chloride and tantalum aryloxide compounds bearing bidentate and tridentate pyrrole‐amine ligands

“…[1][2][3][4][5][6] Organotantalum compounds are usually obtained via metathesis from tantalum halides or metalation from tantalum alkyls or amides as shown in Scheme 1. By inserting new ligands into corresponding tantalum moiety, a large variety of organotantalum compounds were synthesized in past decades, and their applications as catalysis for hydroxy-directed amidation of carboxylic acid esters, [7] phosgene-free synthesis of carbamates, [8] ringopening polymerization, [9][10][11] sol-gel chemistry, [12][13][14][15] etc., have been explored. Besides, the tantalum complexes have a wide variety of uses including capacitors, [16] batteries, [17] conductivity sensors, [18] ferroelectric memory devices, [19] and corrosion-resistant coatings.…”

“…Selected bond lengths and angles are listed below. C1-O1, 1.386 (7); Cl1-Ta1, 2.3917 (16); Cl2-Ta1, 2.4182 (18); Cl3-Ta1, 2.4141(19), N1-Ta1, 2.467 (5);N2-Ta1, 2.043 (14); N3-Ta1, 2.444 (5); O1-Ta1, 1.878 (5); C1-O1-Ta1, 172.8 (8);O1-Ta1-Cl1, 175.0 (3); Cl3-Ta1-Cl2, 77.35(7); N2-Ta1-N3, 69.8 (2); Cl2-Ta1-N3, 73.63 (16); N2-Ta1-N1, 69.21(19); Cl3-Ta1-N1, 73.59(15)…”