In dimers, Ni (DMG) 2 is found to be 6 kcal mol –1 more stable than Cu (DMG) 2 due to a greater extent of dispersive interactions. Interestingly, a modest ferromagnetic coupling (588 cm –1) is predicted between two spin- 1 / 2 Cu 2+ ions present in the Cu (DMG) 2 dimer. Variance, use the following procedure: 1. Fill each crucible containing the Ni(DMG) 2 precipitate half full with ethanol and let sit for 15 min before applying suction. Apply such to remove ethanol. Dry the crucible and contents, cool and reweigh. If the crucible has lost weight but the results appear inconsistent, repeat the procedure.
Molar Mass, Molecular Weight and Elemental Composition Calculator
Molar mass of Ni(dmg)2(h2o)2 is 324.9451 g/mol Convert between Ni((CH3C(NOH)C(NO)CH3))2(H2O)2 weight and moles
Elemental composition of Ni((CH3C(NOH)C(NO)CH3))2(H2O)2
Formula in Hill system is C8H18N4NiO6 | ||||||||||||||||||||||||||||||||||||||
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Ni(dmg)2 Pdf
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| Names | |
|---|---|
| IUPAC name nickel;N-[(Z)-3-nitrosobut-2-en-2-yl]hydroxylamine | |
| Other names | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| EC Number | |
PubChemCID | |
| UNII |
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| Properties | |
| C8H14N4NiO4 | |
| Molar mass | 288.917 g·mol−1 |
| Appearance | red solid |
| Density | 1.698 g/cm3 |
| Hazards | |
| GHS pictograms | |
| GHS Signal word | Warning |
| H315, H317, H319, H335, H351 | |
| P201, P202, P261, P264, P271, P272, P280, P281, P302+352, P304+340, P305+351+338, P308+313, P312, P321, P332+313, P333+313, P337+313, P362, P363, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Nickel bis(dimethylglyoximate) is the coordination complex with the formula Ni[ONC(CH3)C(CH3)NOH]2. The compound is a bright red solid. It achieved prominence for its use in the qualitative analysis of nickel.[1]
Structure[edit]
Ni(dmg)2 Geometry
Nickel(II) is square planar.[2] It is surrounded by two equivalents of the conjugate base (dmgH−) of dimethylglyoxime (dmgH2). The pair of organic ligands are joined through hydrogen bonds to give a macrocyclic ligand. The complex is distinctively colored and insoluble leading to its use as a chelating agent in the gravimetric analysis of nickel.
Ni(dmg)2 Ean
The use of dimethylglyoxime as a reagent to detect nickel was reported by L. A. Chugaev in 1905.[3]
Ni Dmg 2 Structure
References[edit]
Ni Dmg 2 Molar Mass
- ^Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN978-0-08-037941-8.
- ^Donald E. Williams, Gabriele Wohlauer, R. E. Rundle (1959). 'Crystal Structures of Nickel and Palladium Dimethylglyoximes'. J. Am. Chem. Soc. 81: 755–756. doi:10.1021/ja01512a066.CS1 maint: uses authors parameter (link)
- ^Tschugaeff, Lev (1905). 'Über ein neues, empfindliches Reagens auf Nickel' [About a new, sensitive reagent on nickel] (PDF). Berichte der deutschen chemischen Gesellschaft (in German). 38 (3): 2520–2522. doi:10.1002/cber.19050380317.