Tris(2-pyrimidyl)- and tris(5-pyrimidyl)phosphines: new multidentate ligands with diverse coordination chemistry

Tris(2-pyrimidyl)- and tris(5-pyrimidyl)phosphines: new multidentate ligands with diverse coordination chemistry Full article

Journal

Dalton Transactions
ISSN: 1477-9234 , E-ISSN: 1477-9226

Output data

Year: 2026, Volume: 55, Number: 40, Pages: 14494-14506 Pages count : 13 DOI: 10.1039/d6dt01917j

Authors

Baranov Andrey Yu. ¹ , Kuzmin Anton V. ² , Sukhikh Taisia S. ¹ , Mostovich Evgeny A. ³ , Sadykov Evgeny Kh. ¹ , Artem'ev Alexander V. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, SB RAS, 3, Lavrentiev Ave., 630090 Novosibirsk, Russia.
2	Favorsky Irkutsk Institute of Chemistry, SB RAS, 1, Favorsky St., 664033 Irkutsk, Russia
3	Novosibirsk State University, 2, Pirogova St., Novosibirsk 630090, Russia

Funding (1)

Russian Science Foundation

Tris(2-pyrimidyl)- and tris(5-pyrimidyl)phosphines, previously inaccessible multidentate ligands, have been synthesized and introduced into coordination chemistry. Theoretical studies indicate that both ligands are weak σ-donors and strong π-acceptors, exhibiting electronic properties comparable to those of trialkyl phosphites. Positional isomerism of the pyrimidyl groups induces a pronounced difference in steric profile, with the 5-isomer adopting a more open conformation and the 2-isomer a significantly more compact geometry, reflected in their Tolman cone angles of 157° and 148°, respectively. Reactions with Cu(i), Cu(ii), Ag(i), Au(i), Co(ii), and Pt(ii) salts afforded a series of molecular complexes together with 1D and 2D coordination polymers. Tris(5-pyrimidyl)phosphine acts predominantly as a P-monodentate or P,N-/N,N′-bridging ligand, yielding extended frameworks, whereas tris(2-pyrimidyl)phosphine forms both discrete complexes and coordination polymers through P,N,N′- and P,N,N′,N″-modes. Selected Cu(i) and Ag(i) complexes exhibit short-lived luminescence with emission maxima between 460 and 605 nm. These findings demonstrate the potential of symmetric tris(pyrimidyl)phosphines as versatile ligands for coordination chemistry.

Baranov A.Y. , Kuzmin A.V. , Sukhikh T.S. , Mostovich E.A. , Sadykov E.K. , Artem'ev A.V.
Tris(2-pyrimidyl)- and tris(5-pyrimidyl)phosphines: new multidentate ligands with diverse coordination chemistry
Dalton Transactions. 2026. V.55. N40. P.14494-14506. DOI: 10.1039/d6dt01917j WOS Scopus OpenAlex

Submitted:	Aug 5, 2026
Accepted:	Sep 24, 2026
Published print:	Oct 25, 2026
Published online:	Oct 25, 2026

≡ Web of science:	WOS:001892067700001
≡ Scopus:	2-s2.0-105052594750
≡ OpenAlex:	W7214370809