Crystal structure and spectra of Trichloro-p-chlorobenzoyl- 2-furaldehydohydrazono bismuth(III)

Kyriakidis, C. E.; Christidis, P. C.; Rentzeperis, P. J.; Tossidis, I. A.; Bolos, C.A.

doi:10.1524/zkri.1990.193.14.101

Cited by 4 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The zinc ion exhibits pseudo-trigonal bipyramidal coordination resulting from the binding of two chlorides, two nitrogens and one oxygen. The observed coordination mode is similar to that of [CdCl 2 ( 3 -dpktch)] and other related compounds of the type [MCl 2 ( 3 -L)] where L ¼ is a tridentate N,O,N ligand and M¼Zn or Cd [15,32]. The bond distances and angles of [MCl 2 ( 3 -dpktch)], where M¼Zn or Cd are shown in table 4.…”

Section: X-ray Crystallographysupporting

confidence: 67%

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Conry

Green

Mulder

2008

Journal of Coordination Chemistry

View full text Add to dashboard Cite

When dpktch was reacted with ZnCl 2 in refluxing acetonitrile in air [ZnCl 2 ( 3 -dpktch)] was isolated in good yield. Infrared spectra suggest weaker binding of dpktch in [ZnCl 2 ( 3 -dpktch)] than in [CdCl 2 ( 3 -dpktch)]. 1 H-NMR studies in non-aqueous media show that [ZnCl 2 ( 3 -dpktch)] is sensitive to changes in its environment and exchanges its amide proton. Electronic absorption spectral measurements confirmed the sensitivity of [ZnCl 2 ( 3 -dpktch)] to changes in its surroundings and show inter-conversion between two intra-ligand-charge-transfer transitions (ILCT) at 330 AE 2 nm and 404 AE 2 associated with [ZnCl 2 ( 3 -dpktch)] and its conjugate base. Thermo-optical measurements in non-aqueous dmf and dmso show facile interconversion between [ZnCl 2 ( 3 -dpktch)] and its conjugate base, respectively. Also, it is shown that protonation of dmf by [ZnCl 2 ( 3 -dpktch)] is exothermic (standard enthalpy of protonation ÁH ¼ À40.7 AE 1.8 kJ mol À1 ), but endothermic for dmso (ÁH ¼ þ8.3 AE 1.5 kJ mol À1 ). Chemical stimuli in concentrations as low as 5.0 Â 10 À7 M can be detected and determined using [ZnCl 2 ( 3 -dpktch)] in non-aqueous media. X-ray crystallographic studies on a monoclinic, P2 1 /n single crystal of [ZnCl 2 ( 3 -dpktch)] confirmed the N,N,O-coordination of dpktch and revealed interdigitated units of [ZnCl 2 ( 3 -dpktch)] connected via a web of hydrogen bonds.

show abstract

Section: X-ray Crystallographysupporting

confidence: 67%

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Conry

Green

Mulder

2008

Journal of Coordination Chemistry

View full text Add to dashboard Cite

show abstract

“…Pentacoordination is fairly common among Zn(II) complexes [9]. A distorted trigonal bipyramid has been reported as the coordination polyhedron in the structures of a number of complexes with large organic ligands [10,11]. The coordination mode and the geometry of Zn(II) complex molecules results from such factors as lattice forces produced by specific modes of molecular packing in the crystal, the steric effects due to the size and shape of the ligand molecules and the mutual repulsion of electronegative donor atoms.…”

Section: Resultsmentioning

confidence: 99%

Monomeric molecules in the crystal structures of magnesium(II) and zinc(II) complexes with imidazole-4-carboxylate and water ligands

Gryz¹,

Starosta

Leciejewicz

2007

Journal of Coordination Chemistry

View full text Add to dashboard Cite

Magnesiumimidazolate: trans-diaquabis(imidazole-4-carboxylato-2 N,O)-magnesium(II) Mg(C 4 H 3 N 2 O 2 ) 2 (H 2 O) 2 crystallizes in the monoclinic system (space group P2 1 /c). The structure is composed of monomeric molecules, each containing a Mg(II) ion located at the inversion centre and chelated by two imidazole-4-carboxylate ligand molecules via their N,O bonding moieties (Mg-N 2.193(2)Å 0 , Mg-O 2.070(2)Å 0 ) and two water oxygen atoms (Mg-O 2.063(2)Å 0 . A fairly regular octahedron with water oxygen atoms at the apical positions is formed. The monomers are kept together by hydrogen bonds. Triclinic unit cell (space group P 1) of zinc imidazolate: [trans-diaquabis(imidazole-4-carboxylato-2 N,O)-zinc(II)] [monoaquabis(imidazole-4-carboxylato-N,O)-zinc(II)] trihydrate [Zn(C 4 H 3 N 2 O 2 ) 2 (H 2 O) 2 ][Zn(C 4 H 3 N 2 O 2 ) 2 (H 2 O)] Á 3H 2 O contains two monomeric complex molecules in which the Zn(II) ion is octahedrally coordinated by two trans ligand molecules and two water oxygen atoms. The unit cell also contains two monomeric complex molecules in which the Zn(II) ion is pentacoordinate with two ligand molecules and one water oxygen atom. Six solvation water molecules complete the content of the unit cell. Mean bond distances in the pentacoordinated Zn(II) polyhedron are: 2.101(2)Å 0 (Zn-O), 2.040(2)Å 0 (Zn-N) and 2.002(3)Å 0 (Zn-O water ). An extended network of hydrogen bonds is responsible for the stability of the structure.

show abstract

“…Raman: 58 (14), 92 (10), 98 (8), 129 (7), 176 (6), 211 (5), 241 (1), 265 (4), 317 (2), 373 (12), 564 (25), 867 (19), 890 (24), 1113 (23), 1156 (22), 1200 (13), 1442 (18), 1665 (20), 2867 (17), 2895 (16), 2910 (3), 2932 (11), 2944 (21), 2976 (15), 2982 (9). EI-MS (rel intensity): 209 (31), 279 (50), 328 (8), 363.5 (100), 398 (19).…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Structures of the First Bismuth−Ester Complexes Using Heterobifunctional Thiolate Anchored Ligands and Mass Spectrometric Identification of Ligand-Bridged Derivatives

et al. 2003

View full text Add to dashboard Cite

The first systematic series of bismuth complexes involving ester donors, Bi(SCH(2)C(O)OCH(2)CH(3))Cl(2), Bi(SCH(2)C(O)OCH(3))(2)Cl, and Bi(SCH(2)COOCH(3))(3), has been isolated and characterized by spectroscopic (IR, Raman) and X-ray crystallographic data. In addition, these and other species have been identified by electron-impact, electrospray, and atmospheric pressure chemical ionization mass spectometry. The generally applicable synthetic methodology involves the use of heterobifunctional ligands containing a thiolate moiety as an anchor to facilitate coordinate interactions between weak donors (carbonyls) and weak acids (bismuth). The bifunctional nature of the ligands is manifested in both chelating and bridging roles. Important comparisons can be made with the pharmaceutical agent "colloidal bismuth subcitrate" (CBS). The observations allow for a new appreciation of bioactive bismuth compounds, by providing an approach to study the interaction of biorelevant functional groups with bismuth.

show abstract

Crystal structure and spectra of Trichloro-p-chlorobenzoyl- 2-furaldehydohydrazono bismuth(III)

Cited by 4 publications

References 0 publications

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Monomeric molecules in the crystal structures of magnesium(II) and zinc(II) complexes with imidazole-4-carboxylate and water ligands

Synthesis and Structures of the First Bismuth−Ester Complexes Using Heterobifunctional Thiolate Anchored Ligands and Mass Spectrometric Identification of Ligand-Bridged Derivatives

Contact Info

Product

Resources

About

Crystal structure and spectra of Trichloro-p-chlorobenzoyl- 2-furaldehydohydrazono bismuth(III)

Cited by 4 publications

References 0 publications

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl2 (η3-dpktch)] (η3-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl2 (η3-dpktch)] (η3-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Monomeric molecules in the crystal structures of magnesium(II) and zinc(II) complexes with imidazole-4-carboxylate and water ligands

Synthesis and Structures of the First Bismuth−Ester Complexes Using Heterobifunctional Thiolate Anchored Ligands and Mass Spectrometric Identification of Ligand-Bridged Derivatives

Contact Info

Product

Resources

About

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)

Synthesis, spectroscopy, thermodynamics and structure of [ZnCl₂ (η³-dpktch)] (η³-dpktch = N,N,O- di-2-pyridyl ketone thiophene-2-carboxylic acid hydrazone)