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Crystal Structures of [Mn 2 (H 2 O) 4 (phen) 2 (C 4 H 4 O 4 ) 2 ] · 2 H 2 O and [Mn(phen) 2 (H 2 O) 2 ][Mn(phen) 2 (C 4 H 4 O 4 )](C 4 H 4 O 4 ) · 7 H 2 O
Author(s) -
Zheng YueQing,
Lin JianLi,
Sun Jie
Publication year - 2001
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200105)627:5<1059::aid-zaac1059>3.0.co;2-5
Subject(s) - crystallography , supramolecular chemistry , chemistry , molecule , stacking , crystal structure , denticity , hydrogen bond , ligand (biochemistry) , stereochemistry , organic chemistry , biochemistry , receptor
Reactions of 1,10‐phenanthroline monohydrate, Na 2 C 4 H 4 O 4 · 6 H 2 O and MnSO 4 · H 2 O in CH 3 OH/H 2 O yielded a mixture of [Mn 2 (H 2 O) 4 (phen) 2 (C 4 H 4 O 4 ) 2 ] · 2 H 2 O ( 1 ) and [Mn(phen) 2 (H 2 O) 2 ][Mn(phen) 2 (C 4 H 4 O 4 )](C 4 H 4 O 4 ) · 7 H 2 O ( 2 ). The crystal structure of 1 ( P 1 (no. 2), a = 8.257(1) Å, b = 8.395(1) Å, c = 12.879(2) Å, α = 95.33(1)°, β = 104.56(1)°, γ = 106.76(1)°, V = 814.1(2) Å 3 , Z = 1) consists of the dinuclear [Mn 2 (H 2 O) 4 (phen) 2 (C 4 H 4 O 4 ) 2 ] molecules and hydrogen bonded H 2 O molecules. The centrosymmetric dinuclear molecules, in which the Mn atoms are octahedrally coordinated by two N atoms of one phen ligand and four O atoms from two H 2 O molecules and two bis ‐monodentate succinato ligands, are assembled via π‐π stacking interactions into 2 D supramolecular layers parallel to (101) (d(Mn–O) = 2.123–2.265 Å, d (Mn–N) = 2.307 Å). The crystal structure of 2 ( P 1 (no. 2), a = 14.289(2) Å, b = 15.182(2) Å, c = 15.913(2) Å, α = 67.108(7)°, β = 87.27(1)°, γ = 68.216(8)°, V = 2934.2(7) Å 3 , Z = 2) is composed of the [Mn(phen) 2 (H 2 O) 2 ] 2+ cations, [Mn(phen) 2 (C 4 H 4 O 4 )] complex molecules, (C 4 H 4 O 4 ) 2– anions, and H 2 O molecules. The (C 4 H 4 O 4 ) 2– anions and H 2 O molecules form 3 D hydrogen bonded network and the cations and complex molecules in the tunnels along [001] and [011], respectively, are assembled via the π‐π stacking interactions into 1 D supramolecular chains. The Mn atoms are octahedrally coordinated by four N atoms of two bidentate chelating phen ligands and two water O atoms or two carboxyl O atoms (d(Mn–O) = 2.088–2.129 Å, d(Mn–N) = 2.277–2.355 Å). Interestingly, the succinato ligands in the complex molecules assume gauche conformation bidentately to chelate the Mn atoms into seven‐membered rings.