TY - JOUR
T1 - Hydrogen bonding and structural complexity in the Cu5(PO4)2(OH)4 polymorphs (pseudomalachite, ludjibaite, reichenbachite): combined experimental and theoretical study
AU - Krivovichev, S.V.
AU - Zolotarev, A.A.
AU - Popova, V.I.
PY - 2016/8/20
Y1 - 2016/8/20
N2 - © 2016 Springer Science+Business Media New YorkHydrogen bonding in the Cu5(PO4)2(OH)4 polymorphs pseudomalachite, ludjibaite and reichenbachite has been studied by low-temperature single-crystal X-ray diffraction (XRD; pseudomalachite) and solid-state density functional theory (DFT; pseudomalachite, ludjibaite, reichenbachite) calculations. Pseudomalachite at 100 K is monoclinic, P21/c, a = 4.4436(4), b = 5.7320(5), c = 16.9300(15) Å, β = 91.008(8)°, V = 431.15(7) Å3 and Z = 2. The structure has been refined to R1 = 0.025 for 1383 unique observed reflections with |Fo| ≥ 4σF. DFT calculations were done with the CRYSTAL14 software package. For pseudomalachite, the difference between the calculated and experimental H sites does not exceed 0.152 Å. Structural configurations around hydroxyl groups in all three polymorphs show many similarities. Each OH5 group is involved in a three-center (bifurcated) hydrogen bond with the H···A distances in the range of 2.141–2.460 Å and the D–H···A angles in the range of 122.41
AB - © 2016 Springer Science+Business Media New YorkHydrogen bonding in the Cu5(PO4)2(OH)4 polymorphs pseudomalachite, ludjibaite and reichenbachite has been studied by low-temperature single-crystal X-ray diffraction (XRD; pseudomalachite) and solid-state density functional theory (DFT; pseudomalachite, ludjibaite, reichenbachite) calculations. Pseudomalachite at 100 K is monoclinic, P21/c, a = 4.4436(4), b = 5.7320(5), c = 16.9300(15) Å, β = 91.008(8)°, V = 431.15(7) Å3 and Z = 2. The structure has been refined to R1 = 0.025 for 1383 unique observed reflections with |Fo| ≥ 4σF. DFT calculations were done with the CRYSTAL14 software package. For pseudomalachite, the difference between the calculated and experimental H sites does not exceed 0.152 Å. Structural configurations around hydroxyl groups in all three polymorphs show many similarities. Each OH5 group is involved in a three-center (bifurcated) hydrogen bond with the H···A distances in the range of 2.141–2.460 Å and the D–H···A angles in the range of 122.41
U2 - 10.1007/s11224-016-0820-z
DO - 10.1007/s11224-016-0820-z
M3 - Article
SP - 1715
EP - 1723
JO - Structural Chemistry
JF - Structural Chemistry
SN - 1040-0400
ER -