Aluminosilicate zeolite UZM-50

A microporous crystalline zeolite having a three-dimensional framework of at least AlO2 and SiO2 tetrahedral units and a composition in an as synthesized and on an anhydrous basis expressed by an empirical formula of:

• M+mRrAl1-xExSiyOz
• where M is selected from the group consisting of hydrogen, sodium, potassium, magnesium, calcium or combinations thereof, “m” is the mole ratio of M to (Al+E) and varies from 0 to about 1, R is the organic structure directing agent or agents derived from reactants R1 and R2 where R1 is an amine essentially incapable of undergoing pyramidal inversion and having 7 or fewer carbon atoms, and R2 is a dihaloalkane, “r” is the mole ratio of N from the organic structure directing agent or agents to (Al+E) and has a value of from about 0.2 to about 4, E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof, “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from greater than 5 to about 60 and “z” is the mole ratio of O to (Al+E) and has a value determined by the equation:
• z=(m+3+4·y)/2, and is characterized in that an average diameter of the smallest feature observed by SAXS is less than 12 nm, it has a ratio of a N2 mesopore volume to total pore volume ≥0.85, and it has the x-ray diffraction pattern having at least the d-spacing's and intensities set forth in Table A:
• TABLE A
• 2θ
• d (Å)
• I/I0 %
• ~7.5
• 11.5-11.9
• S
• ~22.4
• 3.9-3.99
• VS.

A method of making a microporous crystalline zeolite having a three-dimensional framework of at least AlO2 and SiO2 tetrahedral units and a composition in an as synthesized and on an anhydrous basis expressed by an empirical formula of:

• M+mRrAl1-xExSiyOz
• where M is selected from the group consisting of hydrogen, sodium, potassium, magnesium, calcium or combinations thereof, “m” is the mole ratio of M to (Al+E) and varies from 0 to about 1, R is the organic structure directing agent or agents derived from reactants R1 and R2 where R1 is an amine essentially incapable of undergoing pyramidal inversion and having 7 or fewer carbon atoms, and R2 is a dihaloalkane, “r” is the mole ratio of N from the organic structure directing agent or agents to (Al+E) and has a value of from about 0.2 to about 4, E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof, , “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from greater than 5 to about 60 and “z” is the mole ratio of O to (Al +E) and has a value determined by the equation:
• z=(m+3+4·y)/2, and is characterized in that an average diameter of the smallest feature observed by SAXS is less than 12 nm, it has a ratio of a N2 mesopore volume to total pore volume ≥0.85, and it has the x-ray diffraction pattern having at least the d-spacing's and intensities set forth in Table A:
• TABLE A
• 2θ
• d (Å)
• I/I0 %
• ~7.5
• 11.5-11.9
• S
• ~22.4
• 3.92-3.99
• VS
• comprising:
• forming a reaction mixture including reactive sources of Al, Si, and R, optionally M and E;
• and
• heating the reaction mixture to form the zeolite.