The authors have noticed a minor error in the procedure of the catalytic reaction in the Supporting Information of their Communication. The correct procedure of the catalytic reaction mentioned on page S2 is as follows: in a typical procedure, stilbene (1.0 mmol), MMPF-5(Co) (0.001 mmol), aqueous tBuOOH (added 130 mL at 0 h, 4 h, 8 h, total 3.0 mmol), and CH 3 CN (5.0 mL) were added to the flask and the resulting mixture was stirred at 60 8C for 24 h. The authors apologize for this oversight and for any inconvenience caused.

An instructional research-like multiweek laboratory project for a second-semester introductory general chemistry laboratory course has been developed. The ultrasonic-assisted synthesis method using low cost commercial ultrasonic cleaners has the convenience of running multiple students’ reactions simultaneously. Taking advantage of short reaction time, the green metal–organic framework project has been developed to facilitate experimental synthesis, characterization, and application of a porous material and debriefing of results during a normal laboratory period (about 3 h/class). This project provides the opportunity for instructors to introduce students to the Twelve Principles of Green Chemistry, the environmental impact of chemistry, modern solid-state analytical techniques, and a research-like experience of materials science.

The reaction of H‐Norf with (NH4)2Fe(SO4)2·6H2O and Fe(OH)3 (or Fe2O3) affords Fe(H‐Norf)2(SO4)·2H2O (1) and Fe(Norf)2·4H2O (2), respectively, both of which have 2D polymeric structures. Their interesting magnetic properties are also reported. Crystal data for 1: monoclinic, P21/c, a = 23.166(1), b = 10.0492(4), c = 7.7264(3) Å, β = 98.379(1)°, V = 1779.50(13) Å3, Z = 2; for 2: monoclinic, P21/c, a = 5.8411(12), b = 21.685(4), c = 13.265(3) Å, β = 99.20(3)°, V = 1658.6(6) Å3, Z = 2. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

The rational design and self-assembly of copper(i)±olefin coordination polymers possessing high thermal stability has been the focus of intense interest in recent times. [1] While these materials possess many of the general features normally associated with coordination polymers, the inclusion of bridging ligands that are capable of p bonding offers the possibility of unusual and novel properties. The Cu I ±olefin complexes examined so far have demonstrated an ability to act as fluorescent sensors, [1] and have potential applications in areas such as olefin separation [2] and enantioseparation. [3] To the best of our knowledge, the presence of clusters, such as cubanes, within Cu±olefin coordination polymers is unknown, however there are a number of metal±organic frame-works with clusters acting as connecting units. Such materials have demonstrated gas-storage capabilities as well as exhibiting magnetic and catalytic properties. [4±6] The successful generation of networks incorporating olefin coordination to a copper cluster represents an exciting challenge in modern supramolecular and organometallic chemistry. With this in mind, we have studied the reactions of triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TTT) with CuBr at different temperatures. Herein we report the synthesis, solid-state structures, and some electrochemical properties of two materials generated from such reactions.The reaction between TTT and CuBr in methanol at 50± 60 8C in a sealed tube yielded a product with the formula [Cu 4 Br 4 (TTT) 2 ] n (1), which was examined by single-crystal X-ray diffraction. [7] In this complex, Cu 4 Br 4 clusters are linked by TTT ligands to form a polymeric chain (Figure 1). The Cu and Br atoms occupy corners of a distorted cube, however as is apparent in Figure 1, there are only 10 CuÀBr bonds in each cluster resulting in an open-cubane arrangement (a closedcubane arrangement would have a bond along each edge). The open-cubane unit has two unique Cu I atoms each being coordinated by an olefin moiety and two bromide ions in an approximate plane with the metal center. One of the unique Cu atoms is coordinated to an extra bromide ion located within the cubane unit. This third Cu À Br bond is almost perpendicular to the plane of the other donor atoms, and with a length of 2.95 ä it is considerably longer than the other CuÀBr bonds.Only two of the three arms of the TTT ligand are involved in coordination to the cubane units. The terminal carbon atom of the third arm is disordered over two sites. As is apparent in Figure 1, small cavities within the chain exist with approximate dimensions of 5 î 7.5 ä. These are formed by doubleligand bridges linking neighboring cubane units (a pseudo-3D network representation of 1 can be seen in the Supporting Information).There are many examples of cubane clusters serving as the connecting node [8] in metal±organic coordination polymers, however, to the best of our knowledge, 1 is only the second example of olefin-based ligands linking cubane-type units in coordination poly...

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