Volume 2, Issue 4 pp. 477-485

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Unsymmetrical and symmetrical diphosphazane ligands derived from o-phenylene phosphorochloridite^†

Ruppa P. Kamalesh Babu,

Ruppa P. Kamalesh Babu

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

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Setharampattu S. Krishnamurthy,

Corresponding Author

Setharampattu S. Krishnamurthy

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, IndiaSearch for more papers by this author

Munirathinam Nethaji,

Munirathinam Nethaji

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

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Ruppa P. Kamalesh Babu,

Ruppa P. Kamalesh Babu

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

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Setharampattu S. Krishnamurthy,

Corresponding Author

Setharampattu S. Krishnamurthy

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, IndiaSearch for more papers by this author

Munirathinam Nethaji,

Munirathinam Nethaji

Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-560012, India

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First published: August 1991

https://doi.org/10.1002/hc.520020410

Citations: 19

^†

Dedicated to Prof. Marianne Baudler on the occasion of her seventieth birthday.

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Abstract

Two new diphosphazane ligands, PrⁱN(PPh₂)(PO₂C₆H₄) (1) and PrⁱN{P(O₂C₆H₄)}₂ (3), have been synthesized and characterized by spectroscopic data. The structure of 1 has been confirmed by single crystal X-ray diffraction. Crystal data: Monoclinic, C2/c, Z = 16, a = 34.149(5) Å, b = 9.717(6) Å, c = 29.439(5) Å, β = 125.11(2)°, V = 7991 Å³, R = 0.058, R_w = 0.061. This compound shows two different P–N bond lengths (1.654 (4) and 1.743(4) Å) and a P–N–P angle of 120.7(2)°. Variable temperature ³¹P NMR measurements for 1 and 3 throw light on the nature of the conformers present in solution.

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Unsymmetrical and symmetrical diphosphazane ligands derived from o-phenylene phosphorochloridite^†

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Unsymmetrical and symmetrical diphosphazane ligands derived from o-phenylene phosphorochloridite^†