145
Views
1
CrossRef citations to date
0
Altmetric
Original Articles

Functional Derivatives of [4‐Amino‐N,N′‐bis(2‐hydroxybenzidene)‐1,2‐phenylenediaminato][N,N′‐bis(2‐hydroxybenzidene)‐1,2‐phenylenediaminato]zirconium(IV), Zr(adsp)(Rdsp), for Use as Pendent Groups

, , , , , , , , , , , , , , & show all
Pages 593-609 | Received 31 Mar 2003, Accepted 11 Dec 2003, Published online: 16 Nov 2010
 

Abstract

The objective of this research was to prepare a variety of functional group derivatives of the eight‐coordinate complex [4‐amino‐N,N′‐bis(2‐hydroxybenzidene)‐1,2‐phenylenediaminato][N,N′‐bis(2‐hydroxybenzidene)‐1,2‐phenylenediaminato]zirconium(IV), Zr(adsp)(dsp), for use as pendent groups on polymers. The synthetic method involved reaction of the free ligands di‐2‐hydroxybenzylidene‐4‐nitro‐N,N′‐phenylenediamine [H2(ndsp)] and a functional group derivative of di‐2‐hydroxybenzylidene‐N,N′‐phenylenediamine [H2(Rdsp), R = methyl, 3‐methoxy, 5‐methoxy, cyano, pyridyl nitrogen, and 3‐fluoro substituents] with zirconium tetra‐n‐butoxide in 1:1:1 mole ratio, followed by column separation on silica gel and hydrogenation of the nitro group to amino group using hydrogen gas over Pd/C catalyst. The order of the latter two steps was chosen to affect the best column separation. Elemental analyses, physical data, FT‐IR, and NMR spectral data for six new Zr(adsp)(Rdsp) complexes are reported. Eleven new Zr(ndsp)(Rdsp) and related homoleptic complexes are also included to corroborate spectral assignments.

Acknowledgments

Acknowledgment is made to the Donors of the Petroleum Research Fund, administered by the American Chemical Society, the National Aeronautics and Space Administration Joint Venture program (NASA JOVE), the Olin Corporation Charitable Trust, the Council on Undergraduate Research, and the National Science Foundation Research Experiences for Undergraduates program (NSF REU) for partial support of this research. Additional funding from the RIT College of Science and Department of Chemistry, and technical support from Astra Arcus, USA, are also gratefully acknowledged.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.