Implications for the Thin-Film Densification of TiO\\r sub/2sub\\r from Carboxylic Acid-Modified Titanium Alkoxides. Syntheses, Characterizations, X-ray Structures of Ti\\r sub/3sub\\r (μ\\r sub/3sub\\r -O)(O\\r sub/2sub\\r CH)\\r sub/2sub\\r (ONep)\\r sub/8sub\\r , Ti\\r sub/3sub\\r (μ\\r sub/3sub\\r -O)(O\\r sub/2sub\\r CMe)\\r sub/2sub\\r (ONep)\\r sub/8sub\\r , Ti\\r sub/6sub\\r (μ\\r sub/3sub\\r -O)\\r sub/6sub\\r (O\\r sub/2sub\\r CCHMe\\r sub/2sub\\r )\\r sub/6sub\\r (ONep)\\r sub/6sub\\r , [Ti(μ-O\\r sub/2sub\\r CCMe\\r sub/3sub\\r )(ONep)\\r sub/3sub\\r ]\\r sub/2sub\\r , and Ti\\r sub/3sub\\r (μ\\r sub/3sub\\r -O)(O\\r sub/2sub\\r CCH\\r sub/2sub\\r CMe\\r sub/3sub\\r )\\r sub/2sub\\r (ONep)\\r sub/8sub\\r (ONep = OCH\\r sub/2sub\\r CMe\\r sub/3sub\\r )\\r 1