Solid phase
Official name
Ytterbium disilicate
Secondary names
Ytterbium(III) Silicon Oxide
CAS number
12027-88-2
Type
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
silicate
Chemical composition
Formula
$Yb_2Si_2O_7$
Chemical formula
Yb2Si2O7
Elemental formula
(Yb3+)2 Si2 O (O-)6
Isotope mixture type
terrestrial abundance
6.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Yb^{3+}$ Ytterbium cation element 2 0.6666666666666666 1 constituent cation main
$(Si_2O_7)^{6-}$ Sorosilicate anion chemical function 1 0.3333333333333333 1 anionic radical main
Chemical functions
  Function Number
$(Si_2O_7)^{6-}$ 1
Chemical bonds
  Bond Number
$\cdot (\cdot) Yb^{3+} \cdot O^{-}-$ 6
$\geq Si-O-$ 2
$\geq Si-O^-$ 6
Class
tridimensional covalent networks (11)
Type
multi mixed atoms tridimensional networks (11.06)
Phase type
crystalline
Crystal system
monoclinic
Crystal class
prismatic
Crystal class symbol
2/m (C2h)
Crystal spacegroup
C2/m
Molar mass
514.27 $g/mol$
Density
5.58 (calc.) $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid decomposition $YbSiO_3 + O_2$
Refringence type
biaxial
Pure color
gray
Links