1. A fountain for a liquid pumped through a pump having an outlet port and an inlet port, comprising:
a support frame including an upper support level;
an elongated pipe having a lower end in fluid communication with the outlet port of the pump and an upper open end, the pipe supported by the support frame, adapted for traversing the upper support level of the support frame, and adapted for conveying the liquid therethrough;
a plurality of stackable members each having at least one aperture therethrough of sufficient size to receive the pipe therethrough, a bottom-most member being supported by the upper support level of the support frame;
whereby with the plurality of stackable members each stacked one-on-another on the support frame, the elongated pipe traversing the aperture of each member, the pump pumps the liquid through the pipe to spill down the stackable members, the support frame directing the liquid back to the inlet port of the pump.
2. A fountain for a liquid, comprising:
a support frame including an upper support level;
a pump adapted to fit below the upper support level of the support frame;
an elongated pipe having a lower end adapted to engage an outlet port of the pump and an upper open end, the pipe adapted for traversing the upper support level of the support frame and for conveying the liquid therethrough;
a plurality of stackable members each having at least one aperture therethrough of sufficient size to receive the pipe therethrough, a bottom-most member being supported by the upper support level of the support frame;
whereby with the plurality of stackable members each stacked one-on-another on the support frame, the elongated pipe traversing the aperture of each member, the pump pumps the liquid through the pipe to spill down each of the stackable members and return back to the pump.
3. The fountain of claim 2 wherein the support frame comprises a base that has a substantially hollow, water impermeable enclosure having an open top end, and a cover plate having at least one aperture therein, the cover plate adapted to fit at least partially within the top end of the base to form the upper support level.
4. The fountain of claim 3 wherein the pump includes a power cord traversing a power cord aperture in one side of the base, the power cord and power cord aperture together forming a water tight seal in the base.
5. The fountain of claim 1 wherein each stackable member is substantially identical in shape and size.
6. The fountain of claim 1 wherein each stackable member is substantially identical in shape but not necessarily in size.
7. The fountain of claim 1 wherein each stackable member is a unique shape and size.
8. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a stone material.
9. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a resin material.
10. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a transparent material.
11. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a colored translucent material.
12. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a glass material.
13. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a metallic material.
14. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a ceramic material.
15. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of wood.
16. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a sea shell.
17. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a plastic material.
18. The fountain of claim 1 wherein at least one of the plurality of stackable member is made of a composite material.
19. The fountain of claim 1 wherein the pipe is essentially cylindrical and each aperture in each stackable member is substantially circular, such that each stackable member may rotate freely with respect to the pipe.
20. The fountain of claim 1 wherein the pipe is non-cylindrical and each aperture in each stackable member is of a corresponding shape, such that each stackable member is restrained to at least one rotational orientation on the pipe.
21. The fountain of claim 1 wherein at least one of the stackable members includes at least one depression therein for pooling the liquid.
22. The fountain of claim 1 wherein at least one of the stackable members includes at least one raised area.
23. The fountain of claim 1 wherein at least one of the stackable members includes at least two apertures therethrough, each of sufficient size to receive the pipe therethrough, such that the at least one stackable member may be stacked in at least two horizontal positions with respect to the pipe.
24. The fountain of claim 1 wherein at least one of the stackable members includes a slanted edge, whereby the at least one stackable member may be placed on the pipe with its larger surface facing either down, to reduce waterfall noise, or up, to increase waterfall noise, at the edge thereof.
25. The fountain of claim 3 wherein the pump includes a power cord traversing a power cord aperture in a bottom side of the base, the power cord and power cord aperture together forming the water tight seal in the base.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-26. (canceled)
27. A Cr(V) OCO3- trianionic pincer ligand complex comprising the structure:
where: R is independently a C3 to C12 alkyl or aryl group; R\u2032 is independently a H, C1 to C12 alkyl or aryl group; and L is an oxygen comprising ligand.
28. The pincer ligand complex of claim 27, wherein R is t-butyl, R\u2032 is H and L is tetrahydrofuran (THF).
29. A catalytic method for oxidation of a substrate comprising the steps of:
providing a Cr(V) OCO3- trianionic pincer ligand complex;
providing a source of oxygen molecules; and
providing a substrate, wherein said substrate is oxidized and said Cr(V) OCO3- trianionic pincer ligand complex is reduced by the substrate to give a Cr(III) complex and oxidizing said Cr(III) complex to said Cr(V) OCO3- trianionic pincer ligand complex.
30. The method of claim, 29, wherein said substrate comprises a phosphine, amine, sulfide, alkene, alkane or a second metal complex.
31. The method of claim 29, wherein said Cr(V) OCO3- trianionic pincer ligand complex comprises:
where: R is independently a C3 to C12 alkyl or aryl group; R\u2032 is independently a H, C1 to C12 alkyl or aryl group; and L is an oxygen comprising ligand.
32. The method of claim 29, wherein said Cr(V) OCO3- trianionic pincer ligand complex comprises:
33. A method of preparing a Cr(V) OCO3- trianionic pincer ligand complex comprising the steps of:
providing an OCOH3 pincer ligand;
converting said OCOH3 pincer ligand to an OCOHM2 pincer complex;
exchanging said OCOHM2 pincer complex with a Cr(III) salt; and
oxidizing said Cr(III) to Cr(V).
34. The method of claim 33, wherein said OCOH3 pincer ligand comprises (tBuOCO)H3.
35. The method of claim 33, wherein said OCOHM2 pincer complex comprises an OCOHK2 pincer complex by reaction of said OCOH3 pincer ligand with KH.
36. The method of claim 33, wherein said Cr(III) salt comprises CrCl2Me(THF)3.
37. The method of claim 33, wherein said oxidation comprises oxidation in an oxygen comprising gas.
38. An NCN pincer ligand, comprising a structure selected from:
wherein R is 2,6-bis-(i-propyl)phenyl, 3,5-bis-(methyl)phenyl, 3,5-bis-(i-propyl)phenyl 3,5-bis-(trifluoromethyl)phenyl, mesytyl, or tri-i-propylsilyl.
39. The NCN pincer ligand of claim 38, wherein the ligand is:
wherein R is mesytyl.
40. The NCN pincer ligand of claim 38, wherein the ligand is:
wherein R is 3,5-bis-(trifluoromethyl)phenyl.
41. The NCN pincer ligand of claim 38, wherein the ligand is:
wherein R is 3,5-bis-(trifluoromethyl)phenyl.
42. The NCN pincer ligand of claim 38, wherein the ligand is:
wherein R is tri-i-propylsilyl.
43. The NCN pincer ligand of claim 38, wherein the ligand is:
44. A Cr(III) NCN3- trianionic pincer ligand complex comprising the structure:
where R is 2,6-bis-(i-propyl)phenyl, 3,5-bis-(methyl)phenyl, 3,5-bis-(trifluoromethyl)phenyl, 3,5-bis-(i-propyl)phenyl, mesytyl, or tri-i-propylsilyl and L is any neutral coordinating ligand.
45. The Cr(III) NCN3- trianionic pincer ligand complex of claim 44, wherein the complex is: