Properties of Ir:

Property Name Value Unit Comments Reference
ΔH interface M in O (Miedema) -240 (kJmol-1) 13823
ΔH interface O in M (Miedema) -120 (kJmol-1) 13823
ΔH interface S in M -75 (kJmol-1) 13823
Δinterface M in S (Miedema) -165 (kJmol-1) 13823
γ-free electron to specific heat 3,1 (mJmol-1K-2) 13823
Atomic concentration 7,06 (1023 m-3) 13823
Atomic electron scattering factor at 0.5 3,12 13823
Atomic environment number (Villars, Daams) 12 13823
Atomic number start counting left top, left-right sequence 77 13823
Atomic weight 192,22 (10-3 kg) 13823
Atomic weight 192,217 (10-3 kg) 14358
Boiling temperature 5573 (K) 19178
Boiling temperature 4703 (K) 19178
Boiling temperature 4701 (K) 19178
Boiling temperature 4403 (K) 13823
Bulk modulus 371 (GPa) 13823
Charge nuclear effective (Clementi) 10,57 13823
Chemical potential (Miedema) 5,55 13823
Compression modulus 3,55 (GPa) 13823
Conductivity electrical 20,4 (104 Ohm-1cm-1) 13823
Conductivity thermal 147 (Jmol-1K-1) 13823
Debye temperature 420 (K) 13823
Density 22420 (kgm-3) 13823
Density 22560 (kgm-3) 5390
Distance to core electron (Schubert) 0,79 (A) 13823
Distance to valence electron (Schubert) 1,24 (A) 13823
Electrochemical weight equivalent 0,50026 (mgK-1) 13823
Electron affinity 151 (kJmol-1) 13823
Electronegativity (Alfred-Rochow) 1,55 13823
Electronegativity (Martynov&Batsanov) 1,87 13823
Electronegativity (Pauling) 2,2 13823
Electronegativity absolute 5,4 13823
Energy cohesive (Brewer) 6,94 (Jmol-1) 13823
Energy of ionization (first) 878 (kJmol-1) 13823
Energy of ionization (second) 1641 (kJmol-1) 13823
Energy of ionization (third) 2606 (kJmol-1) 13823
Enthalpy of atomization 665,3 (kJmol-1) 13823
Enthalpy of atomization 670 (kJmol-1) 5390
Enthalpy of melting 26,4 (kJmol-1) 13823
Enthalpy of surface (Miedema) 178 (kJmol-1) 13823
Enthalpy of vacancies (Miedema) 190 (kJmol-1) 13823
Enthalpy of vaporization 612,1 (kJmol-1) 13823
Enthalpy of vaporization 636 (kJmol-1) 19178
Enthalpy of vaporization 564 (kJmol-1) 19178
Entropy of solid 35,49 (Jmol-1K-1) 5390
Entropy of solid 36,42516 (Jmol-1K-1) 13823
Entropy of solid 35,5 (Jmol-1K-1) 20518
Group number 9 13823
Hardness (Brinell) 1670 [MPa] 13823
Linear thermal expansion coefficient 6,4 (10-6K-1) 13823
Magnetic frequency of nuclei 1,718 13823
Magnetic resonance 0,9 (MHz) 13823
Magnetic susceptibility 0,00000000167 (m3kg-1) 13823
Mass attenuation coefficient FeKα 341 (cm2g-1) 13823
Mass attenuation coefficient for CrKα 502 (cm2g-1) 13823
Mass attenuation coefficient for CuKα 193 (cm2g-1) 13823
Mass attenuation coefficient for MoKα 110 (cm2g-1) 13823
Melting temperature 2719 (K) 5390
Melting temperature 2727 (K) 17059
Melting temperature 2683 (K) 13823
Mendeleev chemists sequence 70 13823
Mendeleev d-t start left 61 13823
Mendeleev d-t start right 41 13823
Mendeleev H d-t start left 60 13823
Mendeleev H d-t start right 42 13823
Mendeleev H t-d start left 62 13823
Mendeleev H t-d start right 44 13823
Mendeleev Pettifor 66 13823
Mendeleev Pettifor regular 64 13823
Mendeleev t-d start left 63 13823
Mendeleev t-d start right 43 13823
Modulus of rigidity 209 (GPa) 13823
Molar heat capacity 25,1 (Jmol-1K-1) 13823
Molar heat capacity 25,09 (Jmol-1K-1) 5390
Moment nuclear magnetic 0,17 (mu) 13823
Nuclear charge effective (Slater) 3,9 13823
nWS^(1/3) (Miedema) 1,83 (a.u.-1/3) 13823
Oxidation state (first) 3 13823
Periodic number start counting bottom right, right-left sequence 27 13823
Periodic number start counting left bottom, left-right sequence 40 13823
Periodic number start counting top right, right-left sequence 64 13823
Poisson's ratio 0,26 13823
Quantum number 6 13823
Radii covalent 126 (pm) 13823
Radii metal (Waber) 1,357 (A) 13823
Radii pseudo-potential (Zunger) 2,628 13823
Resistivity electrical 5,3 (10-8 Ohmm) 13823
Sound velocity 4825 (ms-1) 13823
Spectral lines no 169 13823
Spin nuclei 1,5 (h) 13823
Surface tension at Tm 3000 (mJm-2) 13823
Thermal neutron capture cross section 425 (barns) 13823
V^(2/3) (Miedema) 4,17 (cm2) 13823
Valence electron number 9 13823
Vapour pressure at Tm 1,47 (Nm-2) 13823
Volume of atom (Villars, Daams) 1,414 (10-2 nm3) 13823
Work function 5,3 (eV) 13823
Young's modulus 528 (GPa) 13823
Young's modulus 514,8 (GPa) 17059

Radii Ionic properties of Ir:

Property Name Charge CN Value Unit Comments Reference
Radii ionic (Bokii & Belov) 4 0,65 (Å) 13824
Radii ionic (Goldsmidt) 4 0,66 (Å) 13824
Radii ionic (Pauling) 4 0,64 (Å) 13824
Radii ionic (Yagoda) 3 0,75 (Å) 13824
Radii ionic (Yagoda) 4 0,67 (Å) 13824
Radii ionic (Yagoda) 6 0,56 (Å) 13824
Radii ionic (Shannon) 3 6 0,68 (Å) 13826
Radii ionic (Shannon) 4 6 0,625 (Å) 13826
Radii ionic (Shannon) 5 6 0,57 (Å) 13826