s-net: sqc245



			    	
		

		

			
				
				
				
				
			
			
				
					Systre crystallographic geometry file (.cgd) 
			
		

	




	

	
Links to this net in other databases

	

		

			topcryst
		

	

		



 

Topological data




	
Vertices per primitive translational unit 3 

	
Edges per primitive translational unit 9 

	
Transitivity (vertex,edge)(2,4)

	
Vertex degrees {7,4} 

	
Vertex coordination sequence  [(7, 23, 50, 88, 137, 197, 268, 350, 443, 547), (4, 16, 44, 80, 128, 186, 256, 336, 428, 530)] 

	
Wells’ vertex symbol [3^2.4^10.5^6.6^3, 3^2.4^2.5^2] 

	
Systre key (3, 1, 1, -1, 0, 0, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 1, 3, 0, 0, 0, 1, 3, 0, 1, 0, 2, 2, -1, 0, 0, 2, 3, 0, 0, -1, 2, 3, 0, 1, -1) 




 

Geometric data



Systre equilibrium placement (barycentric embedding) maximising unit cell volume




	
 Spacegroup: Cmmm 


	
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 3.51576 
			 1.43527  
			 1.24282 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

	


	
 Vertex positions:
		

			

				 X-pos 
				 Y-pos 
				 Z-pos 
			


				
 
						 0.375  
						 0  
						 0  
				
	  
				
 
						 0  
						 0  
						 0  
				
	  
		

	

	
Edge end points: 
		

		
		
	






Systre coordinates favouring equal edge-lengths




	
 Spacegroup: Cmmm 



		
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 3.0013 
			 1.73171  
			 1.00006 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

		


		
Vertex positions:
			

				

					 X-pos 
					 Y-pos 
					 Z-pos 
				


					
 
							 0.33339  
							  0  
							  0  
					
	  
					
 
							 0  
							  0  
							  0  
					
	  
			

		


		
Edge end points: 
			

			
			
		



	

	 


 

Hyperbolic sources





h-nets with faithful topology




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h-nets with edge collapse