NOVELTY - A metal organic framework (MOF) comprises secondary binding units (SBUs) which are linked together by 1,3,5-tris(4-carboxyphenyl)benzene (BTB)-based linking ligands in which carboxylic acid groups in ligands undergo condensation with SBU.    USE - A metal organic framework for gas separation and/or gas storage device used for vehicle (all claimed).    ADVANTAGE - The MOF has improved hydrogen and methane gas uptake in comparison to MOF-177 and other BTB-based frameworks.    DETAILED DESCRIPTION - A metal organic framework (MOF) comprises secondary binding units (SBUs) which are linked together by 1,3,5-tris(4-carboxyphenyl)benzene (BTB)-based linking ligands of formula (I) in which carboxylic acid groups in formula (I) undergo condensation with SBU.    A1-A3=C or N;    R1-R12=H, D, FG, optionally substituted (1-12C)alkyl, optionally substituted hetero-(1-12C)alkyl, optionally substituted (1-12C)alkenyl, optionally substituted hetero-(1-12C)alkenyl, optionally substituted (1-12C)alkynyl, optionally substituted hetero-(1-12C)alkynyl, optionally substituted (1-12C)cycloalkyl, optionally substituted (1-12C)cycloalkenyl, optionally substituted aryl, optionally substituted heterocycle, optionally substituted mixed ring system, -C(R13)3, -CH(R13)2, -CH2R13, -C(R14)3, -CH(R14)2, -CH2R14, -OC(R13)3, OCH(R13)2, -OCH2R13, -OC(R14)3, -OCH(R14)2, or OCH2R14 in which R1-R12 when adjacent can be linked together to form greater than or equal to 1 optionally substituted rings selected from cycloalkyl, cycloalkenyl, heterocycle, aryl, and mixed ring system;    R13=FG, optionally substituted (1-12C)alkyl, optionally substituted hetero-(1-12C)alkyl, optionally substituted (1-12C)alkenyl, optionally substituted hetero-(1-12C)alkenyl, optionally substituted (1-12C)alkynyl, optionally substituted hetero-(1-12C)alkynyl, hemiacetal, hemiketal, acetal, ketal, and orthoester; and    R14=optionally substituted rings selected from cycloalkyl, aryl, and heterocycle in which greater than or equal to 1 of R1-R12 are not H when A1-A3 are C.    INDEPENDENT CLAIMS are included for:    (1) device comprising MOF; and    (2) method of separating and/or storing greater than or equal to 1 gases from gas mixture which involves contacting gas mixture with MOF.    DESCRIPTION OF DRAWING(S) - The drawings show diagrams of possible MOF topological nets which can result by alternatively linking octahedrons and triangles.