過渡金屬化合物(CoCl2、Zn(NO3)2、Pb(NO3)2、Ni(OAc)2、Ni(NO3)2)與口比啶羧酸(3-pcH和4-pcH)或口比啶雙羧酸(2,3-pdcH2、2,4-pdcH2、2,5-pdcH2、2,6-pdcH2、3,4-pdcH2和3,5-pdcH2)，在110~190℃，10~72小時狀況下，經水熱合成，得出
零維：NCKU-1,[Co(4-pc)2(H2O)4]、
NCKU-13,[Co(2,6-pdc)2‧Co(H2O)6‧2H2O]
一維：NCKU-9,[Ni(2,3-pdc)(H2O)3]n、
二維：NCKU-8,[Pb(2,3-pdc)]n、
NCKU-16,[Co(3,5-pdc)(H2O)2]n、
NCKU-18,
[Cd(2,3-pdc)(H2O)(μ-2,3-pdc)2Ni(2,3-pdc)(H2O)]n
三維：NCKU-6,[Cd2(2,3-pdc)2(H2O)(μ-2,3-pdc)2]n、
NCKU-7,[Zn(2,3-pdc)(H2O)]n、
NCKU-15,{[Co(3,4-pdc)(H2O)2]．H2O}n；其中經氫鍵得出，NCKU-1與13(零維經分子間氫鍵形成三維)；二維及三維的結構均有孔徑的形成；所有的化合物，均用元素分析，固態IR及UV-vis光譜鑑定，也得單晶X光繞射決定有關的構造；其中3-pcH為3-口比啶羧酸，4-pcH為4-口比啶羧酸，2,3-pdcH2為2,3-口比啶雙羧酸，2,4-pdcH2為2,4-口比啶雙羧酸，2,5-pdcH2為2,5-口比啶雙羧酸，2,6-pdcH2為2,6-口比啶雙羧酸，3,4-pdcH2為3,4-口比啶雙羧酸，3,5-pdcH2為3,5-口比啶雙羧酸。

Transition-Metal compounds of CoCl2 , Zn(NO3)2, Pb(NO3)2, Ni(OAc)2, and Ni(NO3)2 reacted hydrothermally with pyridyl mono- or dicarboxylic acid of 3-pcH, 4-pcH, 2,3-pdcH2, 2,4-pdcH2, 2,5-pdcH2, 2,6-pdcH2, 3,4-pdcH2, and 3,5-pdcH2 in a autogenous stainless steel bomb under 110-190℃ to produce 0-, 1-, 2-, and 3-dimensional (0D, 1D, 2D, 3D) structures within 10-72 hours (3-pcH=3-pyridylcarboxylic acid,
4-pcH=4-pyridylcarboxylic acid,
2,3-pdcH2=pyridine-2,3-dicarboxylic acid,
2,4-pdcH2=pyridine-2,4-dicarboxylic acid,
2,5-pdcH2=pyridine-2,5-dicarboxylic acid,
2,6-pdcH2=pyridine-2,6-dicarboxylic acid,
3,4-pdcH2=pyridine-3,4-dicarboxylic acid,
3,5-pdcH2=pyridine-3,5-dicarboxylic acid)
0D：NCKU-1,[Co(4-pc)2(H2O)4]、
NCKU-13,[Co(2,6-pdc)2‧2Co(H2O)6‧2H2O]
1D：NCKU-9,[Ni(2,3-pdc)(H2O)3]n、
2D：NCKU-8,[Pb(2,3-pdc)]n、
NCKU-16,[Co(3,5-pdc)(H2O)2]n、
NCKU-18,
[Cd(2,3-pdc)(H2O)(μ-2,3-pdc)2Ni(2,3-pdc)(H2O)]n
3D：NCKU-6,[Cd2(2,3-pdc)2(H2O)(μ-2,3-pdc)2]n、
NCKU-7,[Zn(2,3-pdc)(H2O)]n、
NCKU-15,{[Co(3,4-pdc)(H2O)2]．H2O}n
With consideration of hydrogen bonding interactions, NCKU-1and -13 can be converted into 3D structures. All the 2D and 3D structures contain cavities which were also measured. The new structures have been characterized by elemental analysis, solid-state IR and UV-vis spectral measurement, and single-crystal structures via X-ray diffraction data.

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