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# flake8: noqa
""" Van der Waals radii in [A] taken from:
A cartography of the van der Waals territories
S. Alvarez, Dalton Trans., 2013, 42, 8617-8636
DOI: 10.1039/C3DT50599E
"""
import numpy as np
vdw_radii = np.array([
np.nan, # X
1.2, # H
1.43, # He [larger uncertainty]
2.12, # Li
1.98, # Be
1.91, # B
1.77, # C
1.66, # N
1.5, # O
1.46, # F
1.58, # Ne [larger uncertainty]
2.5, # Na
2.51, # Mg
2.25, # Al
2.19, # Si
1.9, # P
1.89, # S
1.82, # Cl
1.83, # Ar
2.73, # K
2.62, # Ca
2.58, # Sc
2.46, # Ti
2.42, # V
2.45, # Cr
2.45, # Mn
2.44, # Fe
2.4, # Co
2.4, # Ni
2.38, # Cu
2.39, # Zn
2.32, # Ga
2.29, # Ge
1.88, # As
1.82, # Se
1.86, # Br
2.25, # Kr
3.21, # Rb
2.84, # Sr
2.75, # Y
2.52, # Zr
2.56, # Nb
2.45, # Mo
2.44, # Tc
2.46, # Ru
2.44, # Rh
2.15, # Pd
2.53, # Ag
2.49, # Cd
2.43, # In
2.42, # Sn
2.47, # Sb
1.99, # Te
2.04, # I
2.06, # Xe
3.48, # Cs
3.03, # Ba
2.98, # La
2.88, # Ce
2.92, # Pr
2.95, # Nd
np.nan, # Pm
2.9, # Sm
2.87, # Eu
2.83, # Gd
2.79, # Tb
2.87, # Dy
2.81, # Ho
2.83, # Er
2.79, # Tm
2.8, # Yb
2.74, # Lu
2.63, # Hf
2.53, # Ta
2.57, # W
2.49, # Re
2.48, # Os
2.41, # Ir
2.29, # Pt
2.32, # Au
2.45, # Hg
2.47, # Tl
2.6, # Pb
2.54, # Bi
np.nan, # Po
np.nan, # At
np.nan, # Rn
np.nan, # Fr
np.nan, # Ra
2.8, # Ac [larger uncertainty]
2.93, # Th
2.88, # Pa [larger uncertainty]
2.71, # U
2.82, # Np
2.81, # Pu
2.83, # Am
3.05, # Cm [larger uncertainty]
3.4, # Bk [larger uncertainty]
3.05, # Cf [larger uncertainty]
2.7, # Es [larger uncertainty]
np.nan, # Fm
np.nan, # Md
np.nan, # No
np.nan, # Lr
])
vdw_radii.flags.writeable = False
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