Ean Of Ni Dmg 2

Nickel

Ni(dmg) 2 2+ complex (Figure 1d) Dimethylgloxine (dmg) is a bidentate ligand that chelates a large number of metals. Only two dmg molecules are required per metal center because Ni(dmg) 2 2+ has a square-planar geometry. Add 1% dmg to the aqueous complex. A solid pink/red precipitate forms, the insoluble Ni(dmg) 2 2+ complex. Molar mass of Ni(dmg)2 is 288.9146 g/mol. Formula in Hill system is C8H14N4NiO4. Elemental composition of Ni((CH3C(NOH)C(NO)CH3))2.

  1. Nickel-dimethylglyoxime complex (abbreviated as Ni(II)(DMG)2) modified carbon paste and graphite electrodes were prepared by mixing Ni(II)(DMG)2 with graphite paste, and coating Ni(II)(DMG)2 to.
  2. Mar 30, 2009 2.2. Growth of carbon nanotubes. Carbon nanotubes were produced by pyrolyzing Ni(dmg) 2 at temperatures: 750, 800, 850, 900, 950 and 1000 °C, respectively, under Ar atmosphere. In a typical experiment, a sample of Ni(dmg) 2 (0.2 g) was placed into a crucible and introduced into one end of a silica tube (ID: 20 mm, length 112 cm). The tube was.
(Redirected from Ni(dmgH)2)
Nickel bis(dimethylglyoximate)
Names
IUPAC name
nickel;N-[(Z)-3-nitrosobut-2-en-2-yl]hydroxylamine
Other names
Identifiers
3D model (JSmol)
ChemSpider
EC Number
PubChemCID
  • InChI=1S/2C4H8N2O2.Ni/c2*1-3(5-7)4(2)6-8;/h2*5,7H,1-2H3;/b2*4-3-;
  • CC(=C(C)N=O)NO.CC(=C(C)N=O)NO.[Ni]
Properties
C8H14N4NiO4
Molar mass288.917 g·mol−1
Appearancered solid
Density1.698 g/cm3
Hazards
GHS pictograms
GHS Signal wordWarning
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. Convert iso disk image to dmg. The compound is a bright red solid. It achieved prominence for its use in the qualitative analysis of nickel.[1]

Structure[edit]

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.

The use of dimethylglyoxime as a reagent to detect nickel was reported by L. A. Chugaev in 1905.[3]

References[edit]

Ean Of Ni Dmg 2 Precipitate

  1. ^Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN978-0-08-037941-8.
  2. ^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)
  3. ^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.

Ean Of Ni Dmg 2018

Retrieved from 'https://en.wikipedia.org/w/index.php?title=Nickel_bis(dimethylglyoximate)&oldid=935161854'
Comments are closed.