Solid phase
Official name
Nickel(II) acetylacetonate dihydrate
Secondary names
Bis(2,4-pentanediono)nickel dihydrate; nickel(2+);(Z)-4-oxopent-2-en-2-olate;dihydrate; nickel acetylacetonate dihydrate; nickel acetylacetonate hydrate; C10H14O4Ni.2H2O; Ni(acac)2.2H2O
CAS number
14363-16-7
Type
Family
ionic solid
Class
alkali salt
Compound type
organic salt
Chemical composition
Formula
$Ni^{2+} \cdot (CH_3COCHCO^-CH_3)_2 \bullet 2(H_2O)$
Chemical formula
Ni(CH3COCHCOCH3)2•2(H2O)
Elemental formula
(Ni2+) C10 H18 O6
Isotope mixture type
terrestrial abundance
10.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Ni^{2+}$ Nickel cation element 1 0.2 1 constituent cation main
$(CH_3COCHCOCH_3)^-$ acetylacetonate ion molecule 2 0.4 1 constituent anion main
$H_2O$ Water molecule 2 0.4 1 hydration main
Composition comments
trans-isomer is more stale - The 4 oxygens may be linked to Ni^{2+}
Chemical functions
  Function Number
$R-CH_3$ 2
$R-C(=O)-R$ 1
$R=CH-R$ 1
$R-OH$ 2
Chemical bonds
  Bond Number
$\cdot Ni^{2+} \cdot O^{-}-$ 2
$\cdot\cdot-Ni^{2+}-O-$ 4
$\geq C-H$ 6
$\eqslantgtr C-H$ 1
$\eqslantgtr C-C\leq$ 3
$>C=C<$ 1
$>C=O$ 1
$\eqslantgtr C-O^-$ 1
$-O-H$ 2
Class
alkali salts (06)
Type
hydrated simple alkali salts (06.04)
Phase type
crystalline
Molar mass
292.94 $g/mol$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 230-238 °C (503-511 K)
Phase transitions comments
probzbly decompose upon melting
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