论文部分内容阅读
Two couples of enantiomerically pure chiral cyano-bridged heterobimetallic one-dimensional (1D) chain complexes: [Mn((R,R)-Salphen)Fe(Tp)(CN)3]n (1) and [Mn((S,S)-Salphen)Te(Tp)(CN)3]n (2) (Salphen = N,N’-1,2- diphenyl ethylenebis (salicylideneiminato) dianion, Tp = tris(pyrazolyl) hydroborate), [Mn((R,R)-Salphen)Fe(Tp*) (CN)3·2H2O]n (3) and [Mn((S,S)-Salphen)Fe(Tp*)(CN)3·2H2O]n (4) (Tp* = hydridotris (3Two couples of enantiomerically pure chiral cyano-bridged heterobimetallic one-dimensional (1D) chain complexes: [Mn((R,R)-Salphen)Fe(Tp)(CN)3]n (1) and [Mn((S,S)-Salphen)Te(Tp)(CN)3]n (2) (Salphen = N,N’-1,2- diphenyl ethylenebis (salicylideneiminato) dianion, Tp = tris(pyrazolyl) hydroborate), [Mn((R,R)-Salphen)Fe(Tp*) (CN)3·2H2O]n (3) and [Mn((S,S)-Salphen)Fe(Tp*)(CN)3·2H2O]n (4) (Tp* = hydridotris (3,5-dimethylpyrazol- 1-yl) borate), have been successfully synthesized by the reactions of Mn~(Ⅲ) schiff-base complexes with the tricyanometalate building block, [(LTp)Fe(CN)3]- (LTp = Tp or Tp*). All complexes are made up of neutral cyano-bridged zigzag double chains with (-Fe-C≡N-Mn-N≡C-)n as the repeating unit. Circular dichroism (CD) spectra confirm the enantiomeric nature of the optically active complexes. Magnetic studies demonstrate that ferromagnetic interactions are operative in these complexes. The ferromagnetic couplings become weak in the chains with the bending of the Mn-N≡C angles.,5-dimethylpyrazol- 1-yl) borate), have been successfully synthesized by the reactions of Mn~(Ⅲ) schiff-base complexes with the tricyanometalate building block, [(LTp)Fe(CN)3]- (LTp = Tp or Tp*). All complexes are made up of neutral cyano-bridged zigzag double chains with (-Fe-C≡N-Mn-N≡C-)n as the repeating unit. Circular dichroism (CD) spectra confirm the enantiomeric nature of the optically active complexes. Magnetic studies demonstrate that ferromagnetic interactions are operative in these complexes. The ferromagnetic couplings become weak in the chains with the bending of the Mn-N≡C angles.
Two couples of enantiomerically pure chiral cyano-bridged heterobimetallic one-dimensional (1D) chain complexes: [Mn ((R, R) -Salphen) Fe (Tp) Salphen) Te (Tp) (CN) 3] n (2) (Salphen = N, N’-1,2- diphenyl ethylenebis (salicylideneiminato) dianion, Tp = tris pyrazolyl hydroborate) (CN) 3 · 2H2O] n (3) and [Mn ((S, S) -Sphenphen) Fe (Tp *) (CN) 3 · 2H2O] n (Tp * = hydridotris (3Two couples of enantiomerically pure chiral cyano-bridged heterobimetallic one-dimensional (1D) chain complexes: [Mn ((R, R) -Salphen) Fe and [Mn ((S, S) -Salphen) Te (Tp) (CN) 3] n (2) (Salphen = N, N’-1,2- diphenyl ethylenebis (salicylideneiminato) dianion, Tp = tris (pyrazolyl) hydroborate, Mn ((R, R) -Salphen) Fe (Tp *) (CN) 3.2H2O] n (3) and [Mn 3 · 2H2O] n (4) (Tp * = hydridotris (3,5-dimethylpyrazol- 1-yl) borate), have been synthesized by the reactions of Mn ~ (Ⅲ) schiff-base complexes with the tricyanometalate building block, [(LTp) Fe (CN) 3] - (LT p = Tp or Tp *). All complexes are made up of a neutral cyano-bridged zigzag double chains with (-Fe-C≡N-Mn-N≡C-) n as the repeating unit. Circular dichroism (CD) spectra confirm the enantiomeric nature of the optically active complexes. Magnetic studies demonstrate that ferromagnetic interactions are operative in these complexes. The ferromagnetic couplings become weak in the chains with the bending of the Mn-N≡C angles., 5-dimethylpyrazol- 1 -yl) borate, have been synthesized by the reactions of Mn ~ (Ⅲ) schiff-base complexes with the tricyanometalate building block, [(LTp) Fe (CN) 3] - (LTp = Tp or Tp * up of neutral cyano-bridged zigzag double chains with (-Fe-C≡N-Mn-N≡C-) n as the repeating unit. Circular dichroism (CD) spectra confirm the enantiomeric nature of the optically active complexes. that ferromagnetic interactions are operative in these complexes. The ferromagnetic couplings become weak in the chains with the bending of the Mn-N≡C angles.