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. In Ni(CN) 4 2-, there is Ni 2+ ion for which the electronic configuration in the valence shell is 3d 8 4s 0. In presence of strong field CN - ions, all the electrons are paired up. The empty 4d, 3s and two 4p orbitals undergo dsp 2 hybridization to make bonds with CN - ligands in square planar geometry. 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.
Names | |
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IUPAC name nickel;N-[(Z)-3-nitrosobut-2-en-2-yl]hydroxylamine | |
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Identifiers | |
3D model (JSmol) | |
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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]
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.
Install os x mountain lion app dmg free. Indeed, this lack of physical media is perhaps the biggest complaint about Lion’s App Store-only distribution, as there are a good number of reasons you might want a bootable Lion installer, whether it be a DVD, a thumb drive, or an external hard drive.For example, if you want to on multiple Macs, a bootable installer drive can be more convenient than downloading or copying the entire Lion installer to each computer. (Lion features a new (also called Lion Recovery), but not all installations of Lion get it—and if your Mac’s drive is itself having trouble, recovery mode may not even be available. Also, if your Mac is experiencing problems, a bootable installer drive makes a handy emergency disk.
Aprire file dmg windows 10. How to open dmg files windows 10. The use of dimethylglyoxime as a reagent to detect nickel was reported by L. A. Chugaev in 1905.[3]
References[edit]
- ^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.
2.2 Gd
Molar Mass, Molecular Weight and Elemental Composition Calculator
Calculator
Molar mass of Ni(dmg)2 is 288.9146 g/mol Convert between Ni((CH3C(NOH)C(NO)CH3))2 weight and moles
Elemental composition of Ni((CH3C(NOH)C(NO)CH3))2
Formula in Hill system is C8H14N4NiO4 | ||||||||||||||||||||||||||||||||||||||
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