Experimental and theoretical study of the interaction of volatile amines with zinc porphyrins

Rukin, Pavel S.; Kashchenko, P. A.; Malyavskaya, A. Yu.; Bagatur’yants, A. A.; Алфимов, М. В.

doi:10.1134/s199507801402013x

Cited by 3 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10-fold larger association constants. 22 , 23 By comparison, hexamethylenetetramine (HTMA)—the all-nitrogen analogue of PTA—was found to make stronger axial bonds with Zn–porphyrins compared to pyridyl functions (probably also because of its low steric demand), 24 and binding constants in the range 10 5 to 10 6 M –1 were measured for the axial N-binding of PTA to square planar Zn(salphen) complexes in toluene. 15 …”

Section: Introductionmentioning

confidence: 99%

“…For example, the association constant of pyridine with Zn(TPP) (TPP = meso -tetraphenylporphyrin) was found to be 7.7 × 10 3 M –1 (CH 2 Cl 2 , 25 °C), whereas under the sameor very similarconditions amines (including tertiary amines) have ca. 10-fold larger association constants. , By comparison, hexamethylenetetramine (HTMA)the all-nitrogen analogue of PTAwas found to make stronger axial bonds with Zn–porphyrins compared to pyridyl functions (probably also because of its low steric demand), and binding constants in the range 10 5 to 10 6 M –1 were measured for the axial N-binding of PTA to square planar Zn(salphen) complexes in toluene …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Orthogonal Coordination Chemistry of PTA toward Ru(II) and Zn(II) (PTA = 1,3,5-Triaza-7-phosphaadamantane) for the Construction of 1D and 2D Metal-Mediated Porphyrin Networks

et al. 2020

View full text Add to dashboard Cite

This work demonstrates that PTA (1,3,5-triaza-7-phosphaadamantane) behaves as an orthogonal ligand between Ru(II) and Zn(II), since it selectively binds through the P atom to ruthenium and through one or more of the N atoms to zinc. This property of PTA was exploited for preparing the two monomeric porphyrin adducts with axially bound PTA, [Ru(TPP)(PTA-κ P ) 2 ] ( 1 , TPP = meso -tetraphenylporphyrin) and [Zn(TPP)(PTA-κ N )] ( 3 ). Next, we prepared a number of heterobimetallic Ru/Zn porphyrin polymeric networks—and two discrete molecular systems—mediated by P,N -bridging PTA in which either both metals reside inside a porphyrin core, or one metal belongs to a porphyrin, either Ru(TPP) or Zn(TPP), and the other to a complex or salt of the complementary metal (i.e., cis,cis,trans -[RuCl 2 (CO) 2 (PTA-κ P ) 2 ] ( 5 ), trans -[RuCl 2 (PTA-κ P ) 4 ] ( 7 ), Zn(CH 3 COO) 2 , and ZnCl 2 ). The molecular compounds 1 , 3 , trans -[{RuCl 2 (PTA-κ 2 P,N ) 4 }{Zn(TPP)} 4 ] ( 8 ), and [{Ru(TPP)(PTA-κ P )(PTA-κ 2 P,N )}{ZnCl 2 (OH 2 )}] ( 11 ), as well as the polymeric species [{Ru(TPP)(PTA-κ 2 P,N ) 2 }{Zn(TPP)}] ∞ ( 4 ), cis,cis,trans -[{RuCl 2 (CO) 2 (PTA-κ 2 P,N ) 2 }{Zn(TPP)}] ∞ ( 6 ), trans -[{RuCl 2 (PTA-κ 2 P,N ) 4 }{Zn(TPP)} 2 ] ∞ ( 9 ), and [{Ru(TPP)(PTA-κ 3 P,2N ) 2 }{Zn 9 (CH 3 COO) 16 (CH 3 OH) 2 (OH) 2 }] ∞ ( 10 ), were structurally characterized by single crystal X-ray diffraction. Compounds 4 , 6 , 9 , and 10 are the first examples of so...

show abstract