Syntheses, Characterization and X-ray Crystal Structure of Polymeric Heteronuclear Oxo-bridged Fe/Na Assembled with Salen-type Schiff Base and Dicyanamide

Haba, Popa; Sow, Mouhamadou Moustapha; Sarr, Mamour; Thiam, Ibrahima Elhadji; Diaw, Mahy; Gaye, Mohamed

doi:10.11648/j.sjc.20200802.11

Cited by 3 publications

(6 citation statements)

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“…Vol. 10 No. 1 (2023), 153-166 157 molecules and NH groups were located in the Fourier difference maps and refined.…”

Section: Crystal Structure Determinationmentioning

confidence: 99%

“…Schiff bases with two cavities of different sizes which can accommodate metal ions of different sizes have 154 been synthesized using condensation reaction between well-selected keto precursors and diamines [1][2][3]. Trinuclear complexes formed by two 3d metals with organic ligand in which the 3d metal atom is situated in the smaller N 2 O 2 cage and one s-, d-or fblockmetal ion is coordinated to larger O 2 O 2 cage have been reported [4][5][6][7][8][9][10][11][12][13]. Two different strategies are developed for preparing heteronuclear complexes.…”

Section: Introductionmentioning

confidence: 99%

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Syntheses, Characterization and X-ray Crystal Structure of Trinuclear NiII—NaI—NiII Assembled with Salen-type Schiff Base

Thiam

Seck

et al. 2023

EJCS

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The present investigation describes the synthesis and structural study of a metal-zinc ligand [NiL].H2O, which was used to generate a trinuclear complex formulated as {Ni(m-L)Na(m-L)Ni}.(SCN)0.6.(Cl)0.4. The title compound crystallizes in the tetragonal space group I41/acd with the following unit cell parameters: a = 185403(5) Å, c = 51.925(2) Å, V = 17849.0(3) Å3, Z = 16, R1 = 0.074 and wR2 = 0.209. Each organic molecule acts as a hexadentate ligand and bridges Ni(II) and Na(I). For both Ni(II) cations the coordination environment around the metal center can be described as distorted square planar. The Na(I) cation is eight coordinated and the polyhedron around the sodium ions is best described as a distorted square anti-prism. The means planes of the two phenyl rings with a methoxy substituent form a dihedral angle of 3.870(4)°, while the dihedral angle values of these mean planes with the means plane of the central phenyl ring are, respectively, 11.233(4)° and 14.138(3)°. The Zn–Na distance is 3.4285(7) Å. Weak hydrogen bonds involving C—H as donor and Cl, S or O as acceptor are observed.

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“…Vol. 10 No. 1 (2023), 153-166 157 molecules and NH groups were located in the Fourier difference maps and refined.…”

Section: Crystal Structure Determinationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Syntheses, Characterization and X-ray Crystal Structure of Trinuclear NiII—NaI—NiII Assembled with Salen-type Schiff Base

Thiam

Seck

et al. 2023

EJCS

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“…Therefore, ligands with salicylaldimine moieties are effective for the construction of hetero-metallic complexes with d-block and f-block elements [25][26][27]. These ligands have also made it possible to prepare molecular species containing both s-block and d-or f-block elements [28][29][30]. Several compounds with magnetic [23,24], catalytic [31,32], and bioactivity [22] properties are listed in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Several compounds with magnetic [23,24], catalytic [31,32], and bioactivity [22] properties are listed in the literature. Our research group have already used salicylaldimine derivatives to prepare metalloligands and use them to prepare multinuclear complexes [29,30].…”

Section: Introductionmentioning

confidence: 99%

Syntheses, Characterization, and X-Ray Crystal Structure of a Co-Crystal Containing One Neutral Mononuclear Copper (II) Unit and One Cationic Dinuclear Copper (II) Unit Assembled with Schiff Base and Perchlorate Copper(II) Salt

Diouf

Thiam

Sylla-Gueye

et al. 2022

EJCS

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The use of 2-{[2-(2-hydroxybenzylideneamino)phenylimino]methyl}phenol (H2L) in metal transition chemistry has yielded a co-crystal which is composed by one neutral mononuclear, one cationic dinuclear and one perchlorate anion. During the formation of the complex, one of the salicylaldimine groups of one of the molecules of the H2L ligand hydrolyzed to form an asymmetrical ligand with an amino group leading to the molecule (2-((2-aminophenylimino)methyl)phenol (HL'). The complex was formulated as {[Cu(L)].[Cu2(L)(L')]}.(ClO4). The structure of the complex was solved by single crystal X-ray crystallography. In the mononuclear unit, the Cu2+ atom is coordinated by one dideprotonated molecule of the ligand acting in tetradentate fashion. In the dinuclear unit, one the Cu2+ atom is coordinated by one dideprotonated molecule of the ligand acting in tetradentate fashion and the other Cu2+ is coordinated by the monodeprotonated (2-((2-aminophenylimino)methyl)phenol (HL') acting in tridentate fashion. The two Cu2+ are bridged by the two phenoxo oxygen atoms of the dideprotonated molecule of the ligand. The complex crystallizes in the triclinic space group Pī with the following parameters: a = 13.8864 (3) Å, b = 14.2078 (4) Å, c = 14.5007 (4)) Å, α = 64.593 (3), β = 71.353 (2), γ = 71.707 (2)°, V = 2395.80 (13) Å3, Z = 2, R1 = 0.037, wR2 = 0.041. The supramolecular structures are consolidated by multiple hydrogen bonds.

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“…Potentially ditopic Schiff bases prepared from oxamic or thioxamic hydrazide have been widely reported in the literature by chemists and in particular those interested in coordination chemistry [1][2][3][4][5][6]. Oxamic hydrazide has two different arms.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Schiff Bases Compounds from Oxamic Hydrazide: Spectroscopic Characterization, X–ray Diffraction Structure and Antioxidant Activity Study

Faye¹,

Guèye²,

Camara³

et al. 2021

AJAC

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The compounds (E)-2-amino-N'-(1-(2-hydroxyphenyl)ethylidene)-2-oxoacetohydrazide (I) and (E)-N'-(2hydroxy-3-methoxybenzylidene)-2-amino-2-oxoacetohydrazide (II) were synthetized by the 1:1 ratio condensation reaction of oxamic hydrazide and 2-hydroxyacetophenone or o-vanillin respectively. The two compounds were characterized by physico-chemical analyses, elemental analysis, FTIR, 1 H and 13 C NMR spectroscopies techniques. The structure of the compound (I) was determined by single-crystal X-ray diffraction study. The compound (I) (C 10 H 11 N 3 O 3 ) crystallises in the triclinic space group P-1 with the following unit cell parameters:

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Syntheses, Characterization and X-ray Crystal Structure of Polymeric Heteronuclear Oxo-bridged Fe/Na Assembled with Salen-type Schiff Base and Dicyanamide

Cited by 3 publications

References 1 publication

Syntheses, Characterization and X-ray Crystal Structure of Trinuclear NiII—NaI—NiII Assembled with Salen-type Schiff Base

Syntheses, Characterization and X-ray Crystal Structure of Trinuclear NiII—NaI—NiII Assembled with Salen-type Schiff Base

Syntheses, Characterization, and X-Ray Crystal Structure of a Co-Crystal Containing One Neutral Mononuclear Copper (II) Unit and One Cationic Dinuclear Copper (II) Unit Assembled with Schiff Base and Perchlorate Copper(II) Salt

Synthesis of Schiff Bases Compounds from Oxamic Hydrazide: Spectroscopic Characterization, X–ray Diffraction Structure and Antioxidant Activity Study

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