A Cu−carborane-based metal−organic framework (MOF), NU-135, which contains a quasi-spherical para-carborane moiety, has been synthesized and characterized. NU-135 exhibits a pore volume of 1.02 cm 3 /g and a gravimetric BET surface area of ca. 2600 m 2 /g, and thus represents the first highly porous carborane-based MOF. As a consequence of the unique geometry of the carborane unit, NU-135 has a very high volumetric BET surface area of ca. 1900 m 2 /cm 3 . CH 4 , CO 2 , and H 2 adsorption isotherms were measured over a broad range of pressures and temperatures and are in good agreement with computational predictions. The methane storage capacity of NU-135 at 35 bar and 298 K is ca. 187 v STP /v. At 298 K, the pressure required to achieve a methane storage density comparable to that of a compressed natural gas (CNG) tank pressurized to 212 bar, which is a typical storage pressure, is only 65 bar. The methane working capacity (5−65 bar) is 170 v STP /v. The volumetric hydrogen storage capacity at 55 bar and 77 K is 49 g/L. These properties are comparable to those of current record holders in the area of methane and hydrogen storage. This initial example lays the groundwork for carborane-based materials with high surface areas.
In column 1, line 12, it should be "through" rather than "thorough"; in column 1, line 31, it should be 11.42(6)°rather than 11.48(4)°; in column 2, line 3, it should be 1.4939(7) and 1.4937(7) A ˚rather than 1.4946(2) and 1.4939(2) A ˚.Page 9382. In Table 2, column 5, row 6, for compound Ni III (6), the distance 2.152(1) for Ni-C1A is incorrectly presented in bold; in column 8, row 12, for compound NMe 4 3 4, the distance 2.268(2) for Ni-C 2 B should be in bold.
Given the experiences of Union Carbide in the past few years, I'm close to becoming a planning agnostic. I've decided the future is unknown and unknowable. I'm somewhere between bemused and regretful that all of the efforts of U.S. industry expended on the pursuit and logic of planning have not been able to preclude so many individual and collective failures of management judgment. The relative soundness of numerous businesses still, as always, depends upon the whims of exogenous fortune.
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