The crystal structure of diaquabis(salicylaldehydato)nickel

Stewart, J. M.; Lingafelter, E. C.; Breazeale, J. D.

doi:10.1107/s0365110x61002540

Cited by 52 publications

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“…Surprisingly, no reaction occurred with nickel acetate, presumably because of the steric hindrance induced by the PPh 3 group. In order to avoid this problem, we tried in this case also to invert the order of the reactions, i.e., to use the preformed Ni(Salen) 2 AE 2H 2 O complex [20] in a condensation reaction with 2. After 5 days at 60°C, the dark green paramagnetic solution of 8 and 2 becomes a yellow diamagnetic solution of 9b (Scheme 4).…”

Section: Resultsmentioning

confidence: 99%

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Functionalized phosphorus derivatives of Salpen-like compounds: Synthesis and preliminary complexation studies

Maraval

Magro

Maraval

et al. 2006

Journal of Organometallic Chemistry

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Section: Resultsmentioning

confidence: 99%

“…Solvents were dried and distilled prior to use (THF and ether over sodium/benzophenone, pentane and CH 2 Cl 2 over phosphorus pentoxide) and degazed when phosphines are used. Compounds 1 [11], 6 [20] and AuCl(tht) [21] were prepared as described previously.…”

Section: Generalmentioning

confidence: 99%

Functionalized phosphorus derivatives of Salpen-like compounds: Synthesis and preliminary complexation studies

Maraval

Magro

Maraval

et al. 2006

Journal of Organometallic Chemistry

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“…Ab initio phase and amplitude functions for Ni-O, Ni-Fe, Ni-Mn, and Ni-Al were generated from the refinement of hydrotalcite where Ni, Fe, or Mn were substituted for Mg in the octahedral layer, and from the structures of Trevorite ð½ðNi; CuÞFe 2 3þ O 4 Þ, Heazlewoodite (Ni 3 S 2 ), Godlevskite ((Ni 8.7 ,Fe 0.3 ) 9 S 8 ), and Gaspeite ((Ni,Mg,Fe)CO 3 ). The Ni-O and Ni-C (organic acids) phase and amplitude functions were generated using either nickel acetate tetrahydrate ((Ni(CH) 3 COO) 2 H 2 O) (Nicolai et al, 1998) or disaguabis(salicyladehydato) nickel (Ni(sal) 2 (H 2 O) 2 ) (Stewart et al, 1961) and Ni-N (amino acids) paths using Ni-Imidazole (C 3 H 4 N 2 ) 6 Ni(NO 3 ) 2 (Santoro et al, 1969). The parameters obtained fitting the individual shells were then refined using a multi-shell fit over the entire spectra in k space (Dk = 2.1-10.8).…”

Section: Bulk Xafs Standard Preparation Data Collection and Charactementioning

confidence: 99%

The effects of soil type and chemical treatment on nickel speciation in refinery enriched soils: A multi-technique investigation

McNear

Chaney

Sparks

2007

Geochimica et Cosmochimica Acta

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“…Complexes of Ni H with ligands such as aminocyclohexanecarboxylate (Haendler, 1993), hexafluoroacetonate (Polam & Porter, 1992), salicyaldehydate (Stewart, Lingafelter & Breazeale, 1961), acetylacetonate and tetramethylethylenediamine (Yamada, Hori & Fukuda, 1993), benzenedicarboxylate and 2,2'-bipyridyl (Poleti, Karanovic & Prelesnik, 1990), glycinate and 2,2'-bipyridyl (Z~ik, Gtowiak, Kamenffzek & B~ezina, 1990), carboxylates and silane carboxylate (Morooka et al, 1992) have been reported. Although the structure of flavonol chelated to copper has been reported (Speier, Fiilop & Parkanyi, 1990), little information is available on the analogues of nickel.…”

Section: Commentmentioning

confidence: 99%

trans-Bis(3-hydroxy-2-phenyl-4H-1-benzopyran-4-onato)bis(pyridine)nickel(II)

Farina¹,

Yamin²,

Fun³

et al. 1995

Acta Crystallogr C

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and Ni--N distances are 2.067(2), 2.023 (2) and 2.180 (2)~,, respectively. All the C--C bond distances are normal with values between 1.366 (3) and 1.406 (4)A, except those which are close to the coordinated C--O bonds: C(1)---C(2), C(2)---C(3) and C(9)--C(10) are 1.457 (4), 1.445 (3) and 1.462 (4) A., respectively. All rings are almost planar, except those involving coordinated O atoms. The dihedral angles between the flavonato planes and the pyridyl ligands are Acta Crystallographica Section C ISSN 0108-2701 ©1995 [Ni(C15 H9 03 )2 (C5 H5 N)2 ]quite large with values of ca 84 ° . The angles between the planes in the hydroxyflavone ligand are less than 10 ° . CommentThe structures of coordinated ligands containing N and O atoms bonded to nickel provide important information on metalloenzyme systems. Complexes of Ni H with ligands such as aminocyclohexanecarboxylate (Haendler, 1993), hexafluoroacetonate (Polam & Porter, 1992), salicyaldehydate (Stewart, Lingafelter & Breazeale, 1961), acetylacetonate and tetramethylethylenediamine (Yamada, Hori & Fukuda, 1993), benzenedicarboxylate and 2,2'-bipyridyl (Poleti, Karanovic & Prelesnik, 1990), glycinate and 2,2'-bipyridyl (Z~ik, Gtowiak, Kamenffzek & B~ezina, 1990), carboxylates and silane carboxylate (Morooka et al., 1992) have been reported. Although the structure of flavonol chelated to copper has been reported (Speier, Fiilop & Parkanyi, 1990), little information is available on the analogues of nickel. An ethanolic solution of the triethylammonium salt of the 3-hydroxyflavonato anion reacts with NiC12.6H20 to form [Ni(H20)2(flv)2], which, on heating with excess pyridine under reflux, produces trans-[Ni(py) The crystal structure of (I) is shown in Fig. 1. The Ni atom is octahedrally surrounded by two trans py and two chelating fly ligands. All the trans O--Ni--O and N--Ni--N bond angles are exactly 180 ° because the Ni atom lies on a centre of symmetry. The O---Ni--N angles are close to 90 ° (Table 2). However, the angle subtended by both chelating O atoms at the nickel centre is found to be 81.0(1) °. This value is consistent with the values reported for other five-membered chelates, such as chelates of Ni n with 1-aminocyclohexanecarboxylato and Cu I with 3-hydroxyflavonato (Speier et al., 1990) which have values of 81.3 (2) and 79.2 (3) ° , respectively. The 0(2)--crC ( The C--C bond distances in the hydroxyflavonato moiety further emphasize the canonic nature of the pyrone ring. The C(9)---C(1) and C(3)--C(8) bonds of 1.385 (3) and 1.389 (3)A,, respectively, are shorter than C(1)---C(2) which is 1.457 (4)A in length. The C----C distances in the pyridyl ligands are normal with a mean of 1.376 (6)A,. The N---C distances are slightly shorter than the C--C bond.The least-square planes are almost coplanar except for plane 1 containing Ni (1) ExperimentalThe green rhombohedral product of the reaction described in the Comment was recrystallized from hot acetonitrile. The crystal density Dm was measured by flotation in CCl4/hexane. 1.406 (4) C(4)---C(57 1.366 (3...

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The crystal structure of diaquabis(salicylaldehydato)nickel

Abstract: The crystal structure of diaquabis (salicylaldehydato) nickel has been determined by 2-dimensional projections. The cell dimensions are ao=12.93, b 0=7.32, c0=7.41,~, fl=90°15 ', Z=2.The space group is A2/m. The molecule has a trans octahedral configuration with Ni-O distances 2.03 h.

Cited by 52 publications

References 1 publication

Functionalized phosphorus derivatives of Salpen-like compounds: Synthesis and preliminary complexation studies

Functionalized phosphorus derivatives of Salpen-like compounds: Synthesis and preliminary complexation studies

The effects of soil type and chemical treatment on nickel speciation in refinery enriched soils: A multi-technique investigation

trans-Bis(3-hydroxy-2-phenyl-4H-1-benzopyran-4-onato)bis(pyridine)nickel(II)

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