Table 3 Crystallographic data for compounds 2a-b, 3, 3a-b, and 4.
From: Surface modifications of eight-electron palladium silver superatomic alloys
Compound | 2a | 2b | 3 | 3a and 3b | 4 |
---|---|---|---|---|---|
Empirical formula | C72H168Ag20O24P12PdS24 | C96H216Ag20O24P12Pd S24 | C72H168Ag20O24P12Pd Se24 | C72H168Ag20O24P12PdSe24 | C72H168Ag20O24P12PdSe24 |
Crystal system, space group | Triclinic, P\(\bar{1}\) | Hexagonal, P 63 | Monoclinic, Pn | Trigonal, P31c | Monoclinic, P21 |
a (Å) | 15.8599(12) | 19.2447(7) | 17.9414(11) | 22.5252(9) | 15.9494(6) |
b (Å) | 18.0946(14) | 19.2447(7) | 26.7432(15) | 22.5252(9) | 29.3080(12) |
c (Å) | 29.382(2) | 26.1772(12) | 18.8174(11) | 40.401(2) | 16.4792(7) |
α (°) | 82.1487(15) | 90 | 90 | 90 | 90 |
β (°) | 77.2002(15) | 90 | 113.2950(10) | 90 | 107.4809(10) |
γ (°) | 66.2229(13) | 120 | 90 | 120 | 90 |
V(Å3) | 7514.0(10) | 8396.1(7) | 8292.8(8) | 17752.5(17) | 7347.4(5) |
Z | 2 | 2 | 2 | 4 | 2 |
ρcalcd, g·cm−3 | 2.132 | 2.041 | 2.382 | 2.226 | 2.689 |
μ, mm−1 | 3.166 | 2.841 | 7.834 | 7.319 | 8.842 |
Temperature, K | 150(2) | 100(2) | 150(2) | 150(2) | 100(2) |
θmax, deg./completeness, % | 25.00/95.8 | 24.999/100 | 25.00/99.6 | 24.99/99.9 | 24.99 / 99.9 |
Reflections collected/unique | 44,057/25,382 [R(int) = 0.0237] | 58,687/7962 [R(int) = 0.1157] | 48,427/22,452 [R(int) = 0.0217] | 113,818/ 20,789 [R(int) = 0.0863] | 48,724/25,686 [R(int) = 0.0512] |
Restraints/parameters | 459/1432 | 582/680 | 818/1550 | 712/967 | 456/1440 |
R1a, wR2b [I > 2σ(I)] | 0.0668,0.1355 | 0.0798, 0.1909 | 0.0342, 0.0887 | 0.1125,0.3046 | 0.0399,0.0971 |
R1a, wR2b (all data) | 0.0867,0.1511 | 0.1036, 0.2320 | 0.0387, 0.0919 | 0.1291,0.3191 | 0.0477,0.1046 |
Absolute structure parameter | – | 0.40(18) | 0.037(9) | 0.18(3) | 0.327(9) |
Goodness of fit on F2 | 1.084 | 1.102 | 1.031 | 1.037 | 1.023 |
Largest diff. peak and hole, e/Å 3 | 1.897 and −1.680 | 1.686 and −1.393 | 1.572 and −0.866 | 2.540 and −2.782 | 1.750 and −1.625 |