For the -CH3 group, known for its hydrophobic properties, it is commonly employed in MOFs to impart hydrophobic characteristics. As the smallest hydrocarbon unit, -CH3 becomes increasingly hydrophobic with greater carbon chain length. Previous study has demonstrated that organic ligands with extended hydrocarbon chains are particularly suitable for DAC application when integrated into MOFs. Likewise, promising MOFs functionalized with -CH3 groups exhibit selectivity values consistently above 7.5, with 59 % of them exceeding 100.